Home / 121,760.20-182,669.10-38,654.20

Finding the Fourth Proportional to 121,760.20, 182,669.10 and 38,654.20

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Solution

The fourth proportional to 121,760.20, 182,669.10 and 38,654.20 is: 57,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,760.20 : 182,669.10 = 38,654.20 : x
  2. Step 2: Convert to fraction form
    121,760.20/182,669.10 = 38,654.20/x
  3. Step 3: Cross multiply
    121,760.20x = 182,669.10 × 38,654.20
  4. Step 4: Simplify right side
    121,760.20x = 7,060,927,925.22
  5. Step 5: Solve for x
    x = 7,060,927,925.22/121,760.20
  6. Step 6: Final answer
    x = 57,990.44

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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.