Home / 136,472.12-188,329.02-76,041.47

Finding the Fourth Proportional to 136,472.12, 188,329.02 and 76,041.47

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Solution

The fourth proportional to 136,472.12, 188,329.02 and 76,041.47 is: 104,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,472.12 : 188,329.02 = 76,041.47 : x
  2. Step 2: Convert to fraction form
    136,472.12/188,329.02 = 76,041.47/x
  3. Step 3: Cross multiply
    136,472.12x = 188,329.02 × 76,041.47
  4. Step 4: Simplify right side
    136,472.12x = 14,320,815,292.38
  5. Step 5: Solve for x
    x = 14,320,815,292.38/136,472.12
  6. Step 6: Final answer
    x = 104,935.83

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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.