Home / 119,128.40-178,712.04-40,247.36

Finding the Fourth Proportional to 119,128.40, 178,712.04 and 40,247.36

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Solution

The fourth proportional to 119,128.40, 178,712.04 and 40,247.36 is: 60,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,128.40 : 178,712.04 = 40,247.36 : x
  2. Step 2: Convert to fraction form
    119,128.40/178,712.04 = 40,247.36/x
  3. Step 3: Cross multiply
    119,128.40x = 178,712.04 × 40,247.36
  4. Step 4: Simplify right side
    119,128.40x = 7,192,687,810.21
  5. Step 5: Solve for x
    x = 7,192,687,810.21/119,128.40
  6. Step 6: Final answer
    x = 60,377.61

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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.