Home / 100,732.65-139,000.14-58,283.25

Finding the Fourth Proportional to 100,732.65, 139,000.14 and 58,283.25

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Solution

The fourth proportional to 100,732.65, 139,000.14 and 58,283.25 is: 80,424.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,732.65 : 139,000.14 = 58,283.25 : x
  2. Step 2: Convert to fraction form
    100,732.65/139,000.14 = 58,283.25/x
  3. Step 3: Cross multiply
    100,732.65x = 139,000.14 × 58,283.25
  4. Step 4: Simplify right side
    100,732.65x = 8,101,379,909.66
  5. Step 5: Solve for x
    x = 8,101,379,909.66/100,732.65
  6. Step 6: Final answer
    x = 80,424.57

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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.