Home / 121,329.78-182,020.59-42,446.58

Finding the Fourth Proportional to 121,329.78, 182,020.59 and 42,446.58

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Solution

The fourth proportional to 121,329.78, 182,020.59 and 42,446.58 is: 63,678.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,329.78 : 182,020.59 = 42,446.58 : x
  2. Step 2: Convert to fraction form
    121,329.78/182,020.59 = 42,446.58/x
  3. Step 3: Cross multiply
    121,329.78x = 182,020.59 × 42,446.58
  4. Step 4: Simplify right side
    121,329.78x = 7,726,151,535.08
  5. Step 5: Solve for x
    x = 7,726,151,535.08/121,329.78
  6. Step 6: Final answer
    x = 63,678.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.