Home / 109,519.44-164,279.16-42,990.90

Finding the Fourth Proportional to 109,519.44, 164,279.16 and 42,990.90

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Solution

The fourth proportional to 109,519.44, 164,279.16 and 42,990.90 is: 64,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,519.44 : 164,279.16 = 42,990.90 : x
  2. Step 2: Convert to fraction form
    109,519.44/164,279.16 = 42,990.90/x
  3. Step 3: Cross multiply
    109,519.44x = 164,279.16 × 42,990.90
  4. Step 4: Simplify right side
    109,519.44x = 7,062,508,939.64
  5. Step 5: Solve for x
    x = 7,062,508,939.64/109,519.44
  6. Step 6: Final answer
    x = 64,486.35

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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.