Home / 130,930.44-180,691.75-98,608.05

Finding the Fourth Proportional to 130,930.44, 180,691.75 and 98,608.05

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Solution

The fourth proportional to 130,930.44, 180,691.75 and 98,608.05 is: 136,084.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,930.44 : 180,691.75 = 98,608.05 : x
  2. Step 2: Convert to fraction form
    130,930.44/180,691.75 = 98,608.05/x
  3. Step 3: Cross multiply
    130,930.44x = 180,691.75 × 98,608.05
  4. Step 4: Simplify right side
    130,930.44x = 17,817,661,118.59
  5. Step 5: Solve for x
    x = 17,817,661,118.59/130,930.44
  6. Step 6: Final answer
    x = 136,084.94

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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.