Home / 100,864.40-151,296.60-30,747.20

Finding the Fourth Proportional to 100,864.40, 151,296.60 and 30,747.20

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Solution

The fourth proportional to 100,864.40, 151,296.60 and 30,747.20 is: 46,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,864.40 : 151,296.60 = 30,747.20 : x
  2. Step 2: Convert to fraction form
    100,864.40/151,296.60 = 30,747.20/x
  3. Step 3: Cross multiply
    100,864.40x = 151,296.60 × 30,747.20
  4. Step 4: Simplify right side
    100,864.40x = 4,651,946,819.52
  5. Step 5: Solve for x
    x = 4,651,946,819.52/100,864.40
  6. Step 6: Final answer
    x = 46,120.80

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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.