Home / 151,868.90-209,543.28-88,168.88

Finding the Fourth Proportional to 151,868.90, 209,543.28 and 88,168.88

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Solution

The fourth proportional to 151,868.90, 209,543.28 and 88,168.88 is: 121,652.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,868.90 : 209,543.28 = 88,168.88 : x
  2. Step 2: Convert to fraction form
    151,868.90/209,543.28 = 88,168.88/x
  3. Step 3: Cross multiply
    151,868.90x = 209,543.28 × 88,168.88
  4. Step 4: Simplify right side
    151,868.90x = 18,475,196,309.13
  5. Step 5: Solve for x
    x = 18,475,196,309.13/151,868.90
  6. Step 6: Final answer
    x = 121,652.27

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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.