Home / 99,141.03-148,728.02-39,971.75

Finding the Fourth Proportional to 99,141.03, 148,728.02 and 39,971.75

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Solution

The fourth proportional to 99,141.03, 148,728.02 and 39,971.75 is: 59,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,141.03 : 148,728.02 = 39,971.75 : x
  2. Step 2: Convert to fraction form
    99,141.03/148,728.02 = 39,971.75/x
  3. Step 3: Cross multiply
    99,141.03x = 148,728.02 × 39,971.75
  4. Step 4: Simplify right side
    99,141.03x = 5,944,918,289.94
  5. Step 5: Solve for x
    x = 5,944,918,289.94/99,141.03
  6. Step 6: Final answer
    x = 59,964.26

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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.