Home / 173,986.12-260,979.20-42,658.12

Finding the Fourth Proportional to 173,986.12, 260,979.20 and 42,658.12

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Solution

The fourth proportional to 173,986.12, 260,979.20 and 42,658.12 is: 63,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,986.12 : 260,979.20 = 42,658.12 : x
  2. Step 2: Convert to fraction form
    173,986.12/260,979.20 = 42,658.12/x
  3. Step 3: Cross multiply
    173,986.12x = 260,979.20 × 42,658.12
  4. Step 4: Simplify right side
    173,986.12x = 11,132,882,031.10
  5. Step 5: Solve for x
    x = 11,132,882,031.10/173,986.12
  6. Step 6: Final answer
    x = 63,987.18

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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.