Home / 99,155.12-148,681.62-39,974.90

Finding the Fourth Proportional to 99,155.12, 148,681.62 and 39,974.90

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Solution

The fourth proportional to 99,155.12, 148,681.62 and 39,974.90 is: 59,941.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,155.12 : 148,681.62 = 39,974.90 : x
  2. Step 2: Convert to fraction form
    99,155.12/148,681.62 = 39,974.90/x
  3. Step 3: Cross multiply
    99,155.12x = 148,681.62 × 39,974.90
  4. Step 4: Simplify right side
    99,155.12x = 5,943,532,147.93
  5. Step 5: Solve for x
    x = 5,943,532,147.93/99,155.12
  6. Step 6: Final answer
    x = 59,941.76

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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.