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Finding the Fourth Proportional to 115,522.60, 159,435 and 70,207.96

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Solution

The fourth proportional to 115,522.60, 159,435 and 70,207.96 is: 96,895.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,522.60 : 159,435 = 70,207.96 : x
  2. Step 2: Convert to fraction form
    115,522.60/159,435 = 70,207.96/x
  3. Step 3: Cross multiply
    115,522.60x = 159,435 × 70,207.96
  4. Step 4: Simplify right side
    115,522.60x = 11,193,606,102.60
  5. Step 5: Solve for x
    x = 11,193,606,102.60/115,522.60
  6. Step 6: Final answer
    x = 96,895.38

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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.