Home / 138,474.74-191,094.90-74,812.34

Finding the Fourth Proportional to 138,474.74, 191,094.90 and 74,812.34

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Solution

The fourth proportional to 138,474.74, 191,094.90 and 74,812.34 is: 103,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,474.74 : 191,094.90 = 74,812.34 : x
  2. Step 2: Convert to fraction form
    138,474.74/191,094.90 = 74,812.34/x
  3. Step 3: Cross multiply
    138,474.74x = 191,094.90 × 74,812.34
  4. Step 4: Simplify right side
    138,474.74x = 14,296,256,631.07
  5. Step 5: Solve for x
    x = 14,296,256,631.07/138,474.74
  6. Step 6: Final answer
    x = 103,240.90

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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.