Home / 130,789.48-180,543.72-88,405.42

Finding the Fourth Proportional to 130,789.48, 180,543.72 and 88,405.42

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Solution

The fourth proportional to 130,789.48, 180,543.72 and 88,405.42 is: 122,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,789.48 : 180,543.72 = 88,405.42 : x
  2. Step 2: Convert to fraction form
    130,789.48/180,543.72 = 88,405.42/x
  3. Step 3: Cross multiply
    130,789.48x = 180,543.72 × 88,405.42
  4. Step 4: Simplify right side
    130,789.48x = 15,961,043,394.96
  5. Step 5: Solve for x
    x = 15,961,043,394.96/130,789.48
  6. Step 6: Final answer
    x = 122,036.14

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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.