Home / 134,879.60-202,538.10-90,702.20

Finding the Fourth Proportional to 134,879.60, 202,538.10 and 90,702.20

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Solution

The fourth proportional to 134,879.60, 202,538.10 and 90,702.20 is: 136,200.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,879.60 : 202,538.10 = 90,702.20 : x
  2. Step 2: Convert to fraction form
    134,879.60/202,538.10 = 90,702.20/x
  3. Step 3: Cross multiply
    134,879.60x = 202,538.10 × 90,702.20
  4. Step 4: Simplify right side
    134,879.60x = 18,370,651,253.82
  5. Step 5: Solve for x
    x = 18,370,651,253.82/134,879.60
  6. Step 6: Final answer
    x = 136,200.37

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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.