Home / 130,789.23-180,543.99-88,405.17

Finding the Fourth Proportional to 130,789.23, 180,543.99 and 88,405.17

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Solution

The fourth proportional to 130,789.23, 180,543.99 and 88,405.17 is: 122,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,789.23 : 180,543.99 = 88,405.17 : x
  2. Step 2: Convert to fraction form
    130,789.23/180,543.99 = 88,405.17/x
  3. Step 3: Cross multiply
    130,789.23x = 180,543.99 × 88,405.17
  4. Step 4: Simplify right side
    130,789.23x = 15,961,022,128.43
  5. Step 5: Solve for x
    x = 15,961,022,128.43/130,789.23
  6. Step 6: Final answer
    x = 122,036.21

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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.