Home / 124,988.20-172,482.90-68,399.40

Finding the Fourth Proportional to 124,988.20, 172,482.90 and 68,399.40

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Solution

The fourth proportional to 124,988.20, 172,482.90 and 68,399.40 is: 94,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,988.20 : 172,482.90 = 68,399.40 : x
  2. Step 2: Convert to fraction form
    124,988.20/172,482.90 = 68,399.40/x
  3. Step 3: Cross multiply
    124,988.20x = 172,482.90 × 68,399.40
  4. Step 4: Simplify right side
    124,988.20x = 11,797,726,870.26
  5. Step 5: Solve for x
    x = 11,797,726,870.26/124,988.20
  6. Step 6: Final answer
    x = 94,390.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.