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Finding the Fourth Proportional to 115,657.48, 159,680.82 and 88,748.92

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Solution

The fourth proportional to 115,657.48, 159,680.82 and 88,748.92 is: 122,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,657.48 : 159,680.82 = 88,748.92 : x
  2. Step 2: Convert to fraction form
    115,657.48/159,680.82 = 88,748.92/x
  3. Step 3: Cross multiply
    115,657.48x = 159,680.82 × 88,748.92
  4. Step 4: Simplify right side
    115,657.48x = 14,171,500,319.71
  5. Step 5: Solve for x
    x = 14,171,500,319.71/115,657.48
  6. Step 6: Final answer
    x = 122,529.91

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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.