Home / 170,947.40-256,421.10-123,708.20

Finding the Fourth Proportional to 170,947.40, 256,421.10 and 123,708.20

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Solution

The fourth proportional to 170,947.40, 256,421.10 and 123,708.20 is: 185,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,947.40 : 256,421.10 = 123,708.20 : x
  2. Step 2: Convert to fraction form
    170,947.40/256,421.10 = 123,708.20/x
  3. Step 3: Cross multiply
    170,947.40x = 256,421.10 × 123,708.20
  4. Step 4: Simplify right side
    170,947.40x = 31,721,392,723.02
  5. Step 5: Solve for x
    x = 31,721,392,723.02/170,947.40
  6. Step 6: Final answer
    x = 185,562.30

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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.