Home / 156,119.64-215,446.68-84,501.20

Finding the Fourth Proportional to 156,119.64, 215,446.68 and 84,501.20

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Solution

The fourth proportional to 156,119.64, 215,446.68 and 84,501.20 is: 116,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,119.64 : 215,446.68 = 84,501.20 : x
  2. Step 2: Convert to fraction form
    156,119.64/215,446.68 = 84,501.20/x
  3. Step 3: Cross multiply
    156,119.64x = 215,446.68 × 84,501.20
  4. Step 4: Simplify right side
    156,119.64x = 18,205,501,918.78
  5. Step 5: Solve for x
    x = 18,205,501,918.78/156,119.64
  6. Step 6: Final answer
    x = 116,612.50

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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.