Home / 112,572.72-155,282.67-74,332.62

Finding the Fourth Proportional to 112,572.72, 155,282.67 and 74,332.62

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Solution

The fourth proportional to 112,572.72, 155,282.67 and 74,332.62 is: 102,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,572.72 : 155,282.67 = 74,332.62 : x
  2. Step 2: Convert to fraction form
    112,572.72/155,282.67 = 74,332.62/x
  3. Step 3: Cross multiply
    112,572.72x = 155,282.67 × 74,332.62
  4. Step 4: Simplify right side
    112,572.72x = 11,542,567,701.70
  5. Step 5: Solve for x
    x = 11,542,567,701.70/112,572.72
  6. Step 6: Final answer
    x = 102,534.32

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1.5x scale

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.