Home / 131,043.40-196,517.10-42,320.20

Finding the Fourth Proportional to 131,043.40, 196,517.10 and 42,320.20

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Solution

The fourth proportional to 131,043.40, 196,517.10 and 42,320.20 is: 63,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,043.40 : 196,517.10 = 42,320.20 : x
  2. Step 2: Convert to fraction form
    131,043.40/196,517.10 = 42,320.20/x
  3. Step 3: Cross multiply
    131,043.40x = 196,517.10 × 42,320.20
  4. Step 4: Simplify right side
    131,043.40x = 8,316,642,975.42
  5. Step 5: Solve for x
    x = 8,316,642,975.42/131,043.40
  6. Step 6: Final answer
    x = 63,464.80

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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.