Home / 121,566.33-182,429.28-42,678.54

Finding the Fourth Proportional to 121,566.33, 182,429.28 and 42,678.54

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Solution

The fourth proportional to 121,566.33, 182,429.28 and 42,678.54 is: 64,045.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,566.33 : 182,429.28 = 42,678.54 : x
  2. Step 2: Convert to fraction form
    121,566.33/182,429.28 = 42,678.54/x
  3. Step 3: Cross multiply
    121,566.33x = 182,429.28 × 42,678.54
  4. Step 4: Simplify right side
    121,566.33x = 7,785,815,323.65
  5. Step 5: Solve for x
    x = 7,785,815,323.65/121,566.33
  6. Step 6: Final answer
    x = 64,045.82

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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.