Home / 129,306.78-193,967.46-40,558.32

Finding the Fourth Proportional to 129,306.78, 193,967.46 and 40,558.32

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Solution

The fourth proportional to 129,306.78, 193,967.46 and 40,558.32 is: 60,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,306.78 : 193,967.46 = 40,558.32 : x
  2. Step 2: Convert to fraction form
    129,306.78/193,967.46 = 40,558.32/x
  3. Step 3: Cross multiply
    129,306.78x = 193,967.46 × 40,558.32
  4. Step 4: Simplify right side
    129,306.78x = 7,866,994,312.27
  5. Step 5: Solve for x
    x = 7,866,994,312.27/129,306.78
  6. Step 6: Final answer
    x = 60,839.77

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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.