Home / 129,223.19-178,301.86-75,497.83

Finding the Fourth Proportional to 129,223.19, 178,301.86 and 75,497.83

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Solution

The fourth proportional to 129,223.19, 178,301.86 and 75,497.83 is: 104,171.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,223.19 : 178,301.86 = 75,497.83 : x
  2. Step 2: Convert to fraction form
    129,223.19/178,301.86 = 75,497.83/x
  3. Step 3: Cross multiply
    129,223.19x = 178,301.86 × 75,497.83
  4. Step 4: Simplify right side
    129,223.19x = 13,461,402,880.46
  5. Step 5: Solve for x
    x = 13,461,402,880.46/129,223.19
  6. Step 6: Final answer
    x = 104,171.73

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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.