Home / 118,781.32-178,153.41-38,818.65

Finding the Fourth Proportional to 118,781.32, 178,153.41 and 38,818.65

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Solution

The fourth proportional to 118,781.32, 178,153.41 and 38,818.65 is: 58,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,781.32 : 178,153.41 = 38,818.65 : x
  2. Step 2: Convert to fraction form
    118,781.32/178,153.41 = 38,818.65/x
  3. Step 3: Cross multiply
    118,781.32x = 178,153.41 × 38,818.65
  4. Step 4: Simplify right side
    118,781.32x = 6,915,674,675.00
  5. Step 5: Solve for x
    x = 6,915,674,675.00/118,781.32
  6. Step 6: Final answer
    x = 58,221.91

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1.5x scale

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.