Home / 124,206.12-171,375.30-70,479

Finding the Fourth Proportional to 124,206.12, 171,375.30 and 70,479

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Solution

The fourth proportional to 124,206.12, 171,375.30 and 70,479 is: 97,244.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,206.12 : 171,375.30 = 70,479 : x
  2. Step 2: Convert to fraction form
    124,206.12/171,375.30 = 70,479/x
  3. Step 3: Cross multiply
    124,206.12x = 171,375.30 × 70,479
  4. Step 4: Simplify right side
    124,206.12x = 12,078,359,768.70
  5. Step 5: Solve for x
    x = 12,078,359,768.70/124,206.12
  6. Step 6: Final answer
    x = 97,244.48

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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.