Home / 129,549.75-178,823.39-75,852.02

Finding the Fourth Proportional to 129,549.75, 178,823.39 and 75,852.02

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Solution

The fourth proportional to 129,549.75, 178,823.39 and 75,852.02 is: 104,701.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,549.75 : 178,823.39 = 75,852.02 : x
  2. Step 2: Convert to fraction form
    129,549.75/178,823.39 = 75,852.02/x
  3. Step 3: Cross multiply
    129,549.75x = 178,823.39 × 75,852.02
  4. Step 4: Simplify right side
    129,549.75x = 13,564,114,081.37
  5. Step 5: Solve for x
    x = 13,564,114,081.37/129,549.75
  6. Step 6: Final answer
    x = 104,701.97

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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.