Home / 156,959.12-216,612.45-85,337.62

Finding the Fourth Proportional to 156,959.12, 216,612.45 and 85,337.62

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Solution

The fourth proportional to 156,959.12, 216,612.45 and 85,337.62 is: 117,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959.12 : 216,612.45 = 85,337.62 : x
  2. Step 2: Convert to fraction form
    156,959.12/216,612.45 = 85,337.62/x
  3. Step 3: Cross multiply
    156,959.12x = 216,612.45 × 85,337.62
  4. Step 4: Simplify right side
    156,959.12x = 18,485,190,945.37
  5. Step 5: Solve for x
    x = 18,485,190,945.37/156,959.12
  6. Step 6: Final answer
    x = 117,770.74

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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.