Home / 99,618.34-137,473.36-56,597.91

Finding the Fourth Proportional to 99,618.34, 137,473.36 and 56,597.91

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Solution

The fourth proportional to 99,618.34, 137,473.36 and 56,597.91 is: 78,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.34 : 137,473.36 = 56,597.91 : x
  2. Step 2: Convert to fraction form
    99,618.34/137,473.36 = 56,597.91/x
  3. Step 3: Cross multiply
    99,618.34x = 137,473.36 × 56,597.91
  4. Step 4: Simplify right side
    99,618.34x = 7,780,704,169.31
  5. Step 5: Solve for x
    x = 7,780,704,169.31/99,618.34
  6. Step 6: Final answer
    x = 78,105.14

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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.