Home / 142,060.80-213,016.68-42,207.24

Finding the Fourth Proportional to 142,060.80, 213,016.68 and 42,207.24

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Solution

The fourth proportional to 142,060.80, 213,016.68 and 42,207.24 is: 63,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,060.80 : 213,016.68 = 42,207.24 : x
  2. Step 2: Convert to fraction form
    142,060.80/213,016.68 = 42,207.24/x
  3. Step 3: Cross multiply
    142,060.80x = 213,016.68 × 42,207.24
  4. Step 4: Simplify right side
    142,060.80x = 8,990,846,136.76
  5. Step 5: Solve for x
    x = 8,990,846,136.76/142,060.80
  6. Step 6: Final answer
    x = 63,288.72

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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.