Home / 208,178.76-287,286.08-112,685.24

Finding the Fourth Proportional to 208,178.76, 287,286.08 and 112,685.24

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Solution

The fourth proportional to 208,178.76, 287,286.08 and 112,685.24 is: 155,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,178.76 : 287,286.08 = 112,685.24 : x
  2. Step 2: Convert to fraction form
    208,178.76/287,286.08 = 112,685.24/x
  3. Step 3: Cross multiply
    208,178.76x = 287,286.08 × 112,685.24
  4. Step 4: Simplify right side
    208,178.76x = 32,372,900,873.46
  5. Step 5: Solve for x
    x = 32,372,900,873.46/208,178.76
  6. Step 6: Final answer
    x = 155,505.30

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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.