Home / 151,807.20-209,512.40-88,145.01

Finding the Fourth Proportional to 151,807.20, 209,512.40 and 88,145.01

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Solution

The fourth proportional to 151,807.20, 209,512.40 and 88,145.01 is: 121,650.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,807.20 : 209,512.40 = 88,145.01 : x
  2. Step 2: Convert to fraction form
    151,807.20/209,512.40 = 88,145.01/x
  3. Step 3: Cross multiply
    151,807.20x = 209,512.40 × 88,145.01
  4. Step 4: Simplify right side
    151,807.20x = 18,467,472,152.40
  5. Step 5: Solve for x
    x = 18,467,472,152.40/151,807.20
  6. Step 6: Final answer
    x = 121,650.83

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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.