Home / 99,155.12-148,698.12-39,975.44

Finding the Fourth Proportional to 99,155.12, 148,698.12 and 39,975.44

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Solution

The fourth proportional to 99,155.12, 148,698.12 and 39,975.44 is: 59,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,155.12 : 148,698.12 = 39,975.44 : x
  2. Step 2: Convert to fraction form
    99,155.12/148,698.12 = 39,975.44/x
  3. Step 3: Cross multiply
    99,155.12x = 148,698.12 × 39,975.44
  4. Step 4: Simplify right side
    99,155.12x = 5,944,272,774.17
  5. Step 5: Solve for x
    x = 5,944,272,774.17/99,155.12
  6. Step 6: Final answer
    x = 59,949.23

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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.