Home / 129,319.16-178,542.43-88,551.50

Finding the Fourth Proportional to 129,319.16, 178,542.43 and 88,551.50

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Solution

The fourth proportional to 129,319.16, 178,542.43 and 88,551.50 is: 122,257.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,319.16 : 178,542.43 = 88,551.50 : x
  2. Step 2: Convert to fraction form
    129,319.16/178,542.43 = 88,551.50/x
  3. Step 3: Cross multiply
    129,319.16x = 178,542.43 × 88,551.50
  4. Step 4: Simplify right side
    129,319.16x = 15,810,200,382.51
  5. Step 5: Solve for x
    x = 15,810,200,382.51/129,319.16
  6. Step 6: Final answer
    x = 122,257.22

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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.