Home / 113,918.28-157,207.68-63,617.28

Finding the Fourth Proportional to 113,918.28, 157,207.68 and 63,617.28

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Solution

The fourth proportional to 113,918.28, 157,207.68 and 63,617.28 is: 87,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,918.28 : 157,207.68 = 63,617.28 : x
  2. Step 2: Convert to fraction form
    113,918.28/157,207.68 = 63,617.28/x
  3. Step 3: Cross multiply
    113,918.28x = 157,207.68 × 63,617.28
  4. Step 4: Simplify right side
    113,918.28x = 10,001,124,996.71
  5. Step 5: Solve for x
    x = 10,001,124,996.71/113,918.28
  6. Step 6: Final answer
    x = 87,792.10

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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.