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Finding the Fourth Proportional to 113,522.70, 169,992.45 and 90,000.30

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Solution

The fourth proportional to 113,522.70, 169,992.45 and 90,000.30 is: 134,769.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,522.70 : 169,992.45 = 90,000.30 : x
  2. Step 2: Convert to fraction form
    113,522.70/169,992.45 = 90,000.30/x
  3. Step 3: Cross multiply
    113,522.70x = 169,992.45 × 90,000.30
  4. Step 4: Simplify right side
    113,522.70x = 15,299,371,497.74
  5. Step 5: Solve for x
    x = 15,299,371,497.74/113,522.70
  6. Step 6: Final answer
    x = 134,769.27

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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.