Home / 156,966.55-216,612.72-85,346.62

Finding the Fourth Proportional to 156,966.55, 216,612.72 and 85,346.62

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Solution

The fourth proportional to 156,966.55, 216,612.72 and 85,346.62 is: 117,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,966.55 : 216,612.72 = 85,346.62 : x
  2. Step 2: Convert to fraction form
    156,966.55/216,612.72 = 85,346.62/x
  3. Step 3: Cross multiply
    156,966.55x = 216,612.72 × 85,346.62
  4. Step 4: Simplify right side
    156,966.55x = 18,487,162,959.47
  5. Step 5: Solve for x
    x = 18,487,162,959.47/156,966.55
  6. Step 6: Final answer
    x = 117,777.73

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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.