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Finding the Fourth Proportional to 113,586.80, 170,234.40 and 69,166.40

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Solution

The fourth proportional to 113,586.80, 170,234.40 and 69,166.40 is: 103,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,586.80 : 170,234.40 = 69,166.40 : x
  2. Step 2: Convert to fraction form
    113,586.80/170,234.40 = 69,166.40/x
  3. Step 3: Cross multiply
    113,586.80x = 170,234.40 × 69,166.40
  4. Step 4: Simplify right side
    113,586.80x = 11,774,500,604.16
  5. Step 5: Solve for x
    x = 11,774,500,604.16/113,586.80
  6. Step 6: Final answer
    x = 103,660.82

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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.