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Finding the Fourth Proportional to 115,884.88, 159,923.40 and 75,624.40

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Solution

The fourth proportional to 115,884.88, 159,923.40 and 75,624.40 is: 104,363.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,884.88 : 159,923.40 = 75,624.40 : x
  2. Step 2: Convert to fraction form
    115,884.88/159,923.40 = 75,624.40/x
  3. Step 3: Cross multiply
    115,884.88x = 159,923.40 × 75,624.40
  4. Step 4: Simplify right side
    115,884.88x = 12,094,111,170.96
  5. Step 5: Solve for x
    x = 12,094,111,170.96/115,884.88
  6. Step 6: Final answer
    x = 104,363.15

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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.