Home / 111,257.28-153,547.92-63,517.50

Finding the Fourth Proportional to 111,257.28, 153,547.92 and 63,517.50

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Solution

The fourth proportional to 111,257.28, 153,547.92 and 63,517.50 is: 87,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,257.28 : 153,547.92 = 63,517.50 : x
  2. Step 2: Convert to fraction form
    111,257.28/153,547.92 = 63,517.50/x
  3. Step 3: Cross multiply
    111,257.28x = 153,547.92 × 63,517.50
  4. Step 4: Simplify right side
    111,257.28x = 9,752,980,008.60
  5. Step 5: Solve for x
    x = 9,752,980,008.60/111,257.28
  6. Step 6: Final answer
    x = 87,661.50

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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.