Home / 121,451.55-182,122.65-54,857.40

Finding the Fourth Proportional to 121,451.55, 182,122.65 and 54,857.40

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Solution

The fourth proportional to 121,451.55, 182,122.65 and 54,857.40 is: 82,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,451.55 : 182,122.65 = 54,857.40 : x
  2. Step 2: Convert to fraction form
    121,451.55/182,122.65 = 54,857.40/x
  3. Step 3: Cross multiply
    121,451.55x = 182,122.65 × 54,857.40
  4. Step 4: Simplify right side
    121,451.55x = 9,990,775,060.11
  5. Step 5: Solve for x
    x = 9,990,775,060.11/121,451.55
  6. Step 6: Final answer
    x = 82,261.40

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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.