Home / 178,814.91-246,781.71-102,318.78

Finding the Fourth Proportional to 178,814.91, 246,781.71 and 102,318.78

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Solution

The fourth proportional to 178,814.91, 246,781.71 and 102,318.78 is: 141,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,814.91 : 246,781.71 = 102,318.78 : x
  2. Step 2: Convert to fraction form
    178,814.91/246,781.71 = 102,318.78/x
  3. Step 3: Cross multiply
    178,814.91x = 246,781.71 × 102,318.78
  4. Step 4: Simplify right side
    178,814.91x = 25,250,403,493.51
  5. Step 5: Solve for x
    x = 25,250,403,493.51/178,814.91
  6. Step 6: Final answer
    x = 141,209.72

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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.