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Finding the Fourth Proportional to 113,486.40, 169,922.40 and 88,910.40

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Solution

The fourth proportional to 113,486.40, 169,922.40 and 88,910.40 is: 133,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,486.40 : 169,922.40 = 88,910.40 : x
  2. Step 2: Convert to fraction form
    113,486.40/169,922.40 = 88,910.40/x
  3. Step 3: Cross multiply
    113,486.40x = 169,922.40 × 88,910.40
  4. Step 4: Simplify right side
    113,486.40x = 15,107,868,552.96
  5. Step 5: Solve for x
    x = 15,107,868,552.96/113,486.40
  6. Step 6: Final answer
    x = 133,124.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.