Home / 130,395.38-180,035.25-88,013.30

Finding the Fourth Proportional to 130,395.38, 180,035.25 and 88,013.30

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Solution

The fourth proportional to 130,395.38, 180,035.25 and 88,013.30 is: 121,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,395.38 : 180,035.25 = 88,013.30 : x
  2. Step 2: Convert to fraction form
    130,395.38/180,035.25 = 88,013.30/x
  3. Step 3: Cross multiply
    130,395.38x = 180,035.25 × 88,013.30
  4. Step 4: Simplify right side
    130,395.38x = 15,845,496,468.83
  5. Step 5: Solve for x
    x = 15,845,496,468.83/130,395.38
  6. Step 6: Final answer
    x = 121,518.85

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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.