Home / 99,690.03-137,571.26-57,248.87

Finding the Fourth Proportional to 99,690.03, 137,571.26 and 57,248.87

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Solution

The fourth proportional to 99,690.03, 137,571.26 and 57,248.87 is: 79,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,690.03 : 137,571.26 = 57,248.87 : x
  2. Step 2: Convert to fraction form
    99,690.03/137,571.26 = 57,248.87/x
  3. Step 3: Cross multiply
    99,690.03x = 137,571.26 × 57,248.87
  4. Step 4: Simplify right side
    99,690.03x = 7,875,798,205.38
  5. Step 5: Solve for x
    x = 7,875,798,205.38/99,690.03
  6. Step 6: Final answer
    x = 79,002.87

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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.