Home / 208,125.28-287,213.58-112,631.92

Finding the Fourth Proportional to 208,125.28, 287,213.58 and 112,631.92

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Solution

The fourth proportional to 208,125.28, 287,213.58 and 112,631.92 is: 155,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,125.28 : 287,213.58 = 112,631.92 : x
  2. Step 2: Convert to fraction form
    208,125.28/287,213.58 = 112,631.92/x
  3. Step 3: Cross multiply
    208,125.28x = 287,213.58 × 112,631.92
  4. Step 4: Simplify right side
    208,125.28x = 32,349,416,965.47
  5. Step 5: Solve for x
    x = 32,349,416,965.47/208,125.28
  6. Step 6: Final answer
    x = 155,432.42

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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.