Home / 142,235.46-212,890.14-104,780.70

Finding the Fourth Proportional to 142,235.46, 212,890.14 and 104,780.70

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Solution

The fourth proportional to 142,235.46, 212,890.14 and 104,780.70 is: 156,829.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,235.46 : 212,890.14 = 104,780.70 : x
  2. Step 2: Convert to fraction form
    142,235.46/212,890.14 = 104,780.70/x
  3. Step 3: Cross multiply
    142,235.46x = 212,890.14 × 104,780.70
  4. Step 4: Simplify right side
    142,235.46x = 22,306,777,892.30
  5. Step 5: Solve for x
    x = 22,306,777,892.30/142,235.46
  6. Step 6: Final answer
    x = 156,829.93

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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.