Home / 243,742.53-365,539.30-85,934.08

Finding the Fourth Proportional to 243,742.53, 365,539.30 and 85,934.08

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Solution

The fourth proportional to 243,742.53, 365,539.30 and 85,934.08 is: 128,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,742.53 : 365,539.30 = 85,934.08 : x
  2. Step 2: Convert to fraction form
    243,742.53/365,539.30 = 85,934.08/x
  3. Step 3: Cross multiply
    243,742.53x = 365,539.30 × 85,934.08
  4. Step 4: Simplify right side
    243,742.53x = 31,412,283,449.34
  5. Step 5: Solve for x
    x = 31,412,283,449.34/243,742.53
  6. Step 6: Final answer
    x = 128,874.86

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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.