Home / 138,428.19-207,470.97-98,383.35

Finding the Fourth Proportional to 138,428.19, 207,470.97 and 98,383.35

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Solution

The fourth proportional to 138,428.19, 207,470.97 and 98,383.35 is: 147,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,428.19 : 207,470.97 = 98,383.35 : x
  2. Step 2: Convert to fraction form
    138,428.19/207,470.97 = 98,383.35/x
  3. Step 3: Cross multiply
    138,428.19x = 207,470.97 × 98,383.35
  4. Step 4: Simplify right side
    138,428.19x = 20,411,689,056.35
  5. Step 5: Solve for x
    x = 20,411,689,056.35/138,428.19
  6. Step 6: Final answer
    x = 147,453.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.