Home / 112,527.27-155,214.45-72,177.12

Finding the Fourth Proportional to 112,527.27, 155,214.45 and 72,177.12

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Solution

The fourth proportional to 112,527.27, 155,214.45 and 72,177.12 is: 99,557.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,527.27 : 155,214.45 = 72,177.12 : x
  2. Step 2: Convert to fraction form
    112,527.27/155,214.45 = 72,177.12/x
  3. Step 3: Cross multiply
    112,527.27x = 155,214.45 × 72,177.12
  4. Step 4: Simplify right side
    112,527.27x = 11,202,931,983.38
  5. Step 5: Solve for x
    x = 11,202,931,983.38/112,527.27
  6. Step 6: Final answer
    x = 99,557.48

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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.