Home / 156,154.05-215,492.58-84,534.66

Finding the Fourth Proportional to 156,154.05, 215,492.58 and 84,534.66

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Solution

The fourth proportional to 156,154.05, 215,492.58 and 84,534.66 is: 116,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.05 : 215,492.58 = 84,534.66 : x
  2. Step 2: Convert to fraction form
    156,154.05/215,492.58 = 84,534.66/x
  3. Step 3: Cross multiply
    156,154.05x = 215,492.58 × 84,534.66
  4. Step 4: Simplify right side
    156,154.05x = 18,216,591,982.82
  5. Step 5: Solve for x
    x = 18,216,591,982.82/156,154.05
  6. Step 6: Final answer
    x = 116,657.83

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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.