Home / 142,046.32-213,014.11-53,251.38

Finding the Fourth Proportional to 142,046.32, 213,014.11 and 53,251.38

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Solution

The fourth proportional to 142,046.32, 213,014.11 and 53,251.38 is: 79,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,046.32 : 213,014.11 = 53,251.38 : x
  2. Step 2: Convert to fraction form
    142,046.32/213,014.11 = 53,251.38/x
  3. Step 3: Cross multiply
    142,046.32x = 213,014.11 × 53,251.38
  4. Step 4: Simplify right side
    142,046.32x = 11,343,293,985.64
  5. Step 5: Solve for x
    x = 11,343,293,985.64/142,046.32
  6. Step 6: Final answer
    x = 79,856.30

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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.