Home / 97,289.20-145,825.80-38,105.20

Finding the Fourth Proportional to 97,289.20, 145,825.80 and 38,105.20

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Solution

The fourth proportional to 97,289.20, 145,825.80 and 38,105.20 is: 57,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,289.20 : 145,825.80 = 38,105.20 : x
  2. Step 2: Convert to fraction form
    97,289.20/145,825.80 = 38,105.20/x
  3. Step 3: Cross multiply
    97,289.20x = 145,825.80 × 38,105.20
  4. Step 4: Simplify right side
    97,289.20x = 5,556,721,274.16
  5. Step 5: Solve for x
    x = 5,556,721,274.16/97,289.20
  6. Step 6: Final answer
    x = 57,115.50

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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.