Home / 97,345.20-145,909.80-38,161.20

Finding the Fourth Proportional to 97,345.20, 145,909.80 and 38,161.20

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Solution

The fourth proportional to 97,345.20, 145,909.80 and 38,161.20 is: 57,199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,345.20 : 145,909.80 = 38,161.20 : x
  2. Step 2: Convert to fraction form
    97,345.20/145,909.80 = 38,161.20/x
  3. Step 3: Cross multiply
    97,345.20x = 145,909.80 × 38,161.20
  4. Step 4: Simplify right side
    97,345.20x = 5,568,093,059.76
  5. Step 5: Solve for x
    x = 5,568,093,059.76/97,345.20
  6. Step 6: Final answer
    x = 57,199.46

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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.