Home / 99,389.76-137,156.96-54,067.68

Finding the Fourth Proportional to 99,389.76, 137,156.96 and 54,067.68

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Solution

The fourth proportional to 99,389.76, 137,156.96 and 54,067.68 is: 74,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,389.76 : 137,156.96 = 54,067.68 : x
  2. Step 2: Convert to fraction form
    99,389.76/137,156.96 = 54,067.68/x
  3. Step 3: Cross multiply
    99,389.76x = 137,156.96 × 54,067.68
  4. Step 4: Simplify right side
    99,389.76x = 7,415,758,623.05
  5. Step 5: Solve for x
    x = 7,415,758,623.05/99,389.76
  6. Step 6: Final answer
    x = 74,612.90

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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.