Home / 121,521.60-182,282.40-83,631.83

Finding the Fourth Proportional to 121,521.60, 182,282.40 and 83,631.83

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Solution

The fourth proportional to 121,521.60, 182,282.40 and 83,631.83 is: 125,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,521.60 : 182,282.40 = 83,631.83 : x
  2. Step 2: Convert to fraction form
    121,521.60/182,282.40 = 83,631.83/x
  3. Step 3: Cross multiply
    121,521.60x = 182,282.40 × 83,631.83
  4. Step 4: Simplify right side
    121,521.60x = 15,244,609,777.38
  5. Step 5: Solve for x
    x = 15,244,609,777.38/121,521.60
  6. Step 6: Final answer
    x = 125,447.74

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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.