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Finding the Fourth Proportional to 114,818.88, 172,217.52 and 39,920.88

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Solution

The fourth proportional to 114,818.88, 172,217.52 and 39,920.88 is: 59,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,818.88 : 172,217.52 = 39,920.88 : x
  2. Step 2: Convert to fraction form
    114,818.88/172,217.52 = 39,920.88/x
  3. Step 3: Cross multiply
    114,818.88x = 172,217.52 × 39,920.88
  4. Step 4: Simplify right side
    114,818.88x = 6,875,074,949.82
  5. Step 5: Solve for x
    x = 6,875,074,949.82/114,818.88
  6. Step 6: Final answer
    x = 59,877.56

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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.