Home / 156,722.20-216,276.63-89,654.20

Finding the Fourth Proportional to 156,722.20, 216,276.63 and 89,654.20

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Solution

The fourth proportional to 156,722.20, 216,276.63 and 89,654.20 is: 123,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,722.20 : 216,276.63 = 89,654.20 : x
  2. Step 2: Convert to fraction form
    156,722.20/216,276.63 = 89,654.20/x
  3. Step 3: Cross multiply
    156,722.20x = 216,276.63 × 89,654.20
  4. Step 4: Simplify right side
    156,722.20x = 19,390,108,241.35
  5. Step 5: Solve for x
    x = 19,390,108,241.35/156,722.20
  6. Step 6: Final answer
    x = 123,722.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.