Home / 121,519.40-182,279.10-42,605.15

Finding the Fourth Proportional to 121,519.40, 182,279.10 and 42,605.15

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Solution

The fourth proportional to 121,519.40, 182,279.10 and 42,605.15 is: 63,907.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,519.40 : 182,279.10 = 42,605.15 : x
  2. Step 2: Convert to fraction form
    121,519.40/182,279.10 = 42,605.15/x
  3. Step 3: Cross multiply
    121,519.40x = 182,279.10 × 42,605.15
  4. Step 4: Simplify right side
    121,519.40x = 7,766,028,397.37
  5. Step 5: Solve for x
    x = 7,766,028,397.37/121,519.40
  6. Step 6: Final answer
    x = 63,907.73

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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.