Home / 131,445.20-197,167.80-61,331.60

Finding the Fourth Proportional to 131,445.20, 197,167.80 and 61,331.60

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Solution

The fourth proportional to 131,445.20, 197,167.80 and 61,331.60 is: 91,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,445.20 : 197,167.80 = 61,331.60 : x
  2. Step 2: Convert to fraction form
    131,445.20/197,167.80 = 61,331.60/x
  3. Step 3: Cross multiply
    131,445.20x = 197,167.80 × 61,331.60
  4. Step 4: Simplify right side
    131,445.20x = 12,092,616,642.48
  5. Step 5: Solve for x
    x = 12,092,616,642.48/131,445.20
  6. Step 6: Final answer
    x = 91,997.40

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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.