Home / 121,679.60-182,528.85-42,811.52

Finding the Fourth Proportional to 121,679.60, 182,528.85 and 42,811.52

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Solution

The fourth proportional to 121,679.60, 182,528.85 and 42,811.52 is: 64,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,679.60 : 182,528.85 = 42,811.52 : x
  2. Step 2: Convert to fraction form
    121,679.60/182,528.85 = 42,811.52/x
  3. Step 3: Cross multiply
    121,679.60x = 182,528.85 × 42,811.52
  4. Step 4: Simplify right side
    121,679.60x = 7,814,337,512.35
  5. Step 5: Solve for x
    x = 7,814,337,512.35/121,679.60
  6. Step 6: Final answer
    x = 64,220.60

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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.