Home / 105,725,054.17-145,628,728.90-74,731,939.93

Finding the Fourth Proportional to 105,725,054.17, 145,628,728.90 and 74,731,939.93

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Solution

The fourth proportional to 105,725,054.17, 145,628,728.90 and 74,731,939.93 is: 102,937,922.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,725,054.17 : 145,628,728.90 = 74,731,939.93 : x
  2. Step 2: Convert to fraction form
    105,725,054.17/145,628,728.90 = 74,731,939.93/x
  3. Step 3: Cross multiply
    105,725,054.17x = 145,628,728.90 × 74,731,939.93
  4. Step 4: Simplify right side
    105,725,054.17x = 10,883,117,420,237,056
  5. Step 5: Solve for x
    x = 10,883,117,420,237,056/105,725,054.17
  6. Step 6: Final answer
    x = 102,937,922.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.