Home / 99,493.28-137,278.50-83,425.58

Finding the Fourth Proportional to 99,493.28, 137,278.50 and 83,425.58

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Solution

The fourth proportional to 99,493.28, 137,278.50 and 83,425.58 is: 115,108.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,493.28 : 137,278.50 = 83,425.58 : x
  2. Step 2: Convert to fraction form
    99,493.28/137,278.50 = 83,425.58/x
  3. Step 3: Cross multiply
    99,493.28x = 137,278.50 × 83,425.58
  4. Step 4: Simplify right side
    99,493.28x = 11,452,538,484.03
  5. Step 5: Solve for x
    x = 11,452,538,484.03/99,493.28
  6. Step 6: Final answer
    x = 115,108.66

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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.