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Finding the Fourth Proportional to 118,337.40, 177,246.90 and 102,785.40

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Solution

The fourth proportional to 118,337.40, 177,246.90 and 102,785.40 is: 153,952.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,337.40 : 177,246.90 = 102,785.40 : x
  2. Step 2: Convert to fraction form
    118,337.40/177,246.90 = 102,785.40/x
  3. Step 3: Cross multiply
    118,337.40x = 177,246.90 × 102,785.40
  4. Step 4: Simplify right side
    118,337.40x = 18,218,393,515.26
  5. Step 5: Solve for x
    x = 18,218,393,515.26/118,337.40
  6. Step 6: Final answer
    x = 153,952.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.