Home / 142,318.65-213,412.35-42,452.94

Finding the Fourth Proportional to 142,318.65, 213,412.35 and 42,452.94

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Solution

The fourth proportional to 142,318.65, 213,412.35 and 42,452.94 is: 63,659.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,318.65 : 213,412.35 = 42,452.94 : x
  2. Step 2: Convert to fraction form
    142,318.65/213,412.35 = 42,452.94/x
  3. Step 3: Cross multiply
    142,318.65x = 213,412.35 × 42,452.94
  4. Step 4: Simplify right side
    142,318.65x = 9,059,981,689.81
  5. Step 5: Solve for x
    x = 9,059,981,689.81/142,318.65
  6. Step 6: Final answer
    x = 63,659.83

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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.