Home / 131,330.76-197,000.46-42,585

Finding the Fourth Proportional to 131,330.76, 197,000.46 and 42,585

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Solution

The fourth proportional to 131,330.76, 197,000.46 and 42,585 is: 63,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,330.76 : 197,000.46 = 42,585 : x
  2. Step 2: Convert to fraction form
    131,330.76/197,000.46 = 42,585/x
  3. Step 3: Cross multiply
    131,330.76x = 197,000.46 × 42,585
  4. Step 4: Simplify right side
    131,330.76x = 8,389,264,589.10
  5. Step 5: Solve for x
    x = 8,389,264,589.10/131,330.76
  6. Step 6: Final answer
    x = 63,878.90

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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.