Home / 131,423.90-197,135.85-42,680.30

Finding the Fourth Proportional to 131,423.90, 197,135.85 and 42,680.30

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Solution

The fourth proportional to 131,423.90, 197,135.85 and 42,680.30 is: 64,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,423.90 : 197,135.85 = 42,680.30 : x
  2. Step 2: Convert to fraction form
    131,423.90/197,135.85 = 42,680.30/x
  3. Step 3: Cross multiply
    131,423.90x = 197,135.85 × 42,680.30
  4. Step 4: Simplify right side
    131,423.90x = 8,413,817,218.76
  5. Step 5: Solve for x
    x = 8,413,817,218.76/131,423.90
  6. Step 6: Final answer
    x = 64,020.45

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1.5x scale

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.