Home / 170,842.80-256,264.20-91,126.65

Finding the Fourth Proportional to 170,842.80, 256,264.20 and 91,126.65

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Solution

The fourth proportional to 170,842.80, 256,264.20 and 91,126.65 is: 136,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,842.80 : 256,264.20 = 91,126.65 : x
  2. Step 2: Convert to fraction form
    170,842.80/256,264.20 = 91,126.65/x
  3. Step 3: Cross multiply
    170,842.80x = 256,264.20 × 91,126.65
  4. Step 4: Simplify right side
    170,842.80x = 23,352,498,060.93
  5. Step 5: Solve for x
    x = 23,352,498,060.93/170,842.80
  6. Step 6: Final answer
    x = 136,689.98

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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.