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Finding the Fourth Proportional to 113,489.70, 170,234.55 and 104,960.40

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Solution

The fourth proportional to 113,489.70, 170,234.55 and 104,960.40 is: 157,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,489.70 : 170,234.55 = 104,960.40 : x
  2. Step 2: Convert to fraction form
    113,489.70/170,234.55 = 104,960.40/x
  3. Step 3: Cross multiply
    113,489.70x = 170,234.55 × 104,960.40
  4. Step 4: Simplify right side
    113,489.70x = 17,867,886,461.82
  5. Step 5: Solve for x
    x = 17,867,886,461.82/113,489.70
  6. Step 6: Final answer
    x = 157,440.60

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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.