Home / 142,123.02-212,951.25-48,577.74

Finding the Fourth Proportional to 142,123.02, 212,951.25 and 48,577.74

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Solution

The fourth proportional to 142,123.02, 212,951.25 and 48,577.74 is: 72,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,123.02 : 212,951.25 = 48,577.74 : x
  2. Step 2: Convert to fraction form
    142,123.02/212,951.25 = 48,577.74/x
  3. Step 3: Cross multiply
    142,123.02x = 212,951.25 × 48,577.74
  4. Step 4: Simplify right side
    142,123.02x = 10,344,690,455.18
  5. Step 5: Solve for x
    x = 10,344,690,455.18/142,123.02
  6. Step 6: Final answer
    x = 72,786.87

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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.