Home / 243,329.22-365,156.55-85,557.06

Finding the Fourth Proportional to 243,329.22, 365,156.55 and 85,557.06

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Solution

The fourth proportional to 243,329.22, 365,156.55 and 85,557.06 is: 128,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,329.22 : 365,156.55 = 85,557.06 : x
  2. Step 2: Convert to fraction form
    243,329.22/365,156.55 = 85,557.06/x
  3. Step 3: Cross multiply
    243,329.22x = 365,156.55 × 85,557.06
  4. Step 4: Simplify right side
    243,329.22x = 31,241,720,857.74
  5. Step 5: Solve for x
    x = 31,241,720,857.74/243,329.22
  6. Step 6: Final answer
    x = 128,392.80

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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.