Home / 129,830.51-194,233.32-98,331.33

Finding the Fourth Proportional to 129,830.51, 194,233.32 and 98,331.33

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Solution

The fourth proportional to 129,830.51, 194,233.32 and 98,331.33 is: 147,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,830.51 : 194,233.32 = 98,331.33 : x
  2. Step 2: Convert to fraction form
    129,830.51/194,233.32 = 98,331.33/x
  3. Step 3: Cross multiply
    129,830.51x = 194,233.32 × 98,331.33
  4. Step 4: Simplify right side
    129,830.51x = 19,099,220,194.26
  5. Step 5: Solve for x
    x = 19,099,220,194.26/129,830.51
  6. Step 6: Final answer
    x = 147,108.88

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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.