Home / 105,725,053.17-145,628,727.53-74,731,938.93

Finding the Fourth Proportional to 105,725,053.17, 145,628,727.53 and 74,731,938.93

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Solution

The fourth proportional to 105,725,053.17, 145,628,727.53 and 74,731,938.93 is: 102,937,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,725,053.17 : 145,628,727.53 = 74,731,938.93 : x
  2. Step 2: Convert to fraction form
    105,725,053.17/145,628,727.53 = 74,731,938.93/x
  3. Step 3: Cross multiply
    105,725,053.17x = 145,628,727.53 × 74,731,938.93
  4. Step 4: Simplify right side
    105,725,053.17x = 10,883,117,171,851,912
  5. Step 5: Solve for x
    x = 10,883,117,171,851,912/105,725,053.17
  6. Step 6: Final answer
    x = 102,937,921.01

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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.