Home / 156,383.74-215,807.22-88,398.32

Finding the Fourth Proportional to 156,383.74, 215,807.22 and 88,398.32

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Solution

The fourth proportional to 156,383.74, 215,807.22 and 88,398.32 is: 121,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,383.74 : 215,807.22 = 88,398.32 : x
  2. Step 2: Convert to fraction form
    156,383.74/215,807.22 = 88,398.32/x
  3. Step 3: Cross multiply
    156,383.74x = 215,807.22 × 88,398.32
  4. Step 4: Simplify right side
    156,383.74x = 19,076,995,691.87
  5. Step 5: Solve for x
    x = 19,076,995,691.87/156,383.74
  6. Step 6: Final answer
    x = 121,988.36

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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.