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Finding the Fourth Proportional to 158,733.68, 219,040.68 and 87,102.32

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Solution

The fourth proportional to 158,733.68, 219,040.68 and 87,102.32 is: 120,194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,733.68 : 219,040.68 = 87,102.32 : x
  2. Step 2: Convert to fraction form
    158,733.68/219,040.68 = 87,102.32/x
  3. Step 3: Cross multiply
    158,733.68x = 219,040.68 × 87,102.32
  4. Step 4: Simplify right side
    158,733.68x = 19,078,951,402.38
  5. Step 5: Solve for x
    x = 19,078,951,402.38/158,733.68
  6. Step 6: Final answer
    x = 120,194.73

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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.