Home / 99,597.65-137,439.45-57,153.38

Finding the Fourth Proportional to 99,597.65, 137,439.45 and 57,153.38

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Solution

The fourth proportional to 99,597.65, 137,439.45 and 57,153.38 is: 78,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,597.65 : 137,439.45 = 57,153.38 : x
  2. Step 2: Convert to fraction form
    99,597.65/137,439.45 = 57,153.38/x
  3. Step 3: Cross multiply
    99,597.65x = 137,439.45 × 57,153.38
  4. Step 4: Simplify right side
    99,597.65x = 7,855,128,425.64
  5. Step 5: Solve for x
    x = 7,855,128,425.64/99,597.65
  6. Step 6: Final answer
    x = 78,868.62

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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.