Home / 112,470.76-155,209.80-64,723.24

Finding the Fourth Proportional to 112,470.76, 155,209.80 and 64,723.24

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Solution

The fourth proportional to 112,470.76, 155,209.80 and 64,723.24 is: 89,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,470.76 : 155,209.80 = 64,723.24 : x
  2. Step 2: Convert to fraction form
    112,470.76/155,209.80 = 64,723.24/x
  3. Step 3: Cross multiply
    112,470.76x = 155,209.80 × 64,723.24
  4. Step 4: Simplify right side
    112,470.76x = 10,045,681,135.75
  5. Step 5: Solve for x
    x = 10,045,681,135.75/112,470.76
  6. Step 6: Final answer
    x = 89,318.16

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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.