Home / 156,194.50-215,587.29-89,165.38

Finding the Fourth Proportional to 156,194.50, 215,587.29 and 89,165.38

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Solution

The fourth proportional to 156,194.50, 215,587.29 and 89,165.38 is: 123,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,194.50 : 215,587.29 = 89,165.38 : x
  2. Step 2: Convert to fraction form
    156,194.50/215,587.29 = 89,165.38/x
  3. Step 3: Cross multiply
    156,194.50x = 215,587.29 × 89,165.38
  4. Step 4: Simplify right side
    156,194.50x = 19,222,922,636.02
  5. Step 5: Solve for x
    x = 19,222,922,636.02/156,194.50
  6. Step 6: Final answer
    x = 123,070.42

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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.