Home / 156,001.68-215,282.07-84,381.48

Finding the Fourth Proportional to 156,001.68, 215,282.07 and 84,381.48

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Solution

The fourth proportional to 156,001.68, 215,282.07 and 84,381.48 is: 116,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,001.68 : 215,282.07 = 84,381.48 : x
  2. Step 2: Convert to fraction form
    156,001.68/215,282.07 = 84,381.48/x
  3. Step 3: Cross multiply
    156,001.68x = 215,282.07 × 84,381.48
  4. Step 4: Simplify right side
    156,001.68x = 18,165,819,684.06
  5. Step 5: Solve for x
    x = 18,165,819,684.06/156,001.68
  6. Step 6: Final answer
    x = 116,446.31

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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.