Home / 149,670.48-206,521.68-89,199.64

Finding the Fourth Proportional to 149,670.48, 206,521.68 and 89,199.64

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Solution

The fourth proportional to 149,670.48, 206,521.68 and 89,199.64 is: 123,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,670.48 : 206,521.68 = 89,199.64 : x
  2. Step 2: Convert to fraction form
    149,670.48/206,521.68 = 89,199.64/x
  3. Step 3: Cross multiply
    149,670.48x = 206,521.68 × 89,199.64
  4. Step 4: Simplify right side
    149,670.48x = 18,421,659,508.20
  5. Step 5: Solve for x
    x = 18,421,659,508.20/149,670.48
  6. Step 6: Final answer
    x = 123,081.45

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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.