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Finding the Fourth Proportional to 88,437.59, 122,119.73 and 85,577.87

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Solution

The fourth proportional to 88,437.59, 122,119.73 and 85,577.87 is: 118,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,437.59 : 122,119.73 = 85,577.87 : x
  2. Step 2: Convert to fraction form
    88,437.59/122,119.73 = 85,577.87/x
  3. Step 3: Cross multiply
    88,437.59x = 122,119.73 × 85,577.87
  4. Step 4: Simplify right side
    88,437.59x = 10,450,745,339.89
  5. Step 5: Solve for x
    x = 10,450,745,339.89/88,437.59
  6. Step 6: Final answer
    x = 118,170.86

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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.