Home / 156,909.92-236,218.67-142,959.56

Finding the Fourth Proportional to 156,909.92, 236,218.67 and 142,959.56

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Solution

The fourth proportional to 156,909.92, 236,218.67 and 142,959.56 is: 215,217.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,909.92 : 236,218.67 = 142,959.56 : x
  2. Step 2: Convert to fraction form
    156,909.92/236,218.67 = 142,959.56/x
  3. Step 3: Cross multiply
    156,909.92x = 236,218.67 × 142,959.56
  4. Step 4: Simplify right side
    156,909.92x = 33,769,717,126.99
  5. Step 5: Solve for x
    x = 33,769,717,126.99/156,909.92
  6. Step 6: Final answer
    x = 215,217.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.