Home / 121,520.40-182,280.60-42,606.15

Finding the Fourth Proportional to 121,520.40, 182,280.60 and 42,606.15

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Solution

The fourth proportional to 121,520.40, 182,280.60 and 42,606.15 is: 63,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,520.40 : 182,280.60 = 42,606.15 : x
  2. Step 2: Convert to fraction form
    121,520.40/182,280.60 = 42,606.15/x
  3. Step 3: Cross multiply
    121,520.40x = 182,280.60 × 42,606.15
  4. Step 4: Simplify right side
    121,520.40x = 7,766,274,585.69
  5. Step 5: Solve for x
    x = 7,766,274,585.69/121,520.40
  6. Step 6: Final answer
    x = 63,909.23

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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.