Home / 137,311.90-205,967.85-58,428.70

Finding the Fourth Proportional to 137,311.90, 205,967.85 and 58,428.70

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Solution

The fourth proportional to 137,311.90, 205,967.85 and 58,428.70 is: 87,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,311.90 : 205,967.85 = 58,428.70 : x
  2. Step 2: Convert to fraction form
    137,311.90/205,967.85 = 58,428.70/x
  3. Step 3: Cross multiply
    137,311.90x = 205,967.85 × 58,428.70
  4. Step 4: Simplify right side
    137,311.90x = 12,034,433,717.30
  5. Step 5: Solve for x
    x = 12,034,433,717.30/137,311.90
  6. Step 6: Final answer
    x = 87,643.05

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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.