Home / 113,708.30-170,234.40-69,421.55

Finding the Fourth Proportional to 113,708.30, 170,234.40 and 69,421.55

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Solution

The fourth proportional to 113,708.30, 170,234.40 and 69,421.55 is: 103,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,708.30 : 170,234.40 = 69,421.55 : x
  2. Step 2: Convert to fraction form
    113,708.30/170,234.40 = 69,421.55/x
  3. Step 3: Cross multiply
    113,708.30x = 170,234.40 × 69,421.55
  4. Step 4: Simplify right side
    113,708.30x = 11,817,935,911.32
  5. Step 5: Solve for x
    x = 11,817,935,911.32/113,708.30
  6. Step 6: Final answer
    x = 103,932.04

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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.