Home / 185,441.12-278,175.48-78,813.12

Finding the Fourth Proportional to 185,441.12, 278,175.48 and 78,813.12

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Solution

The fourth proportional to 185,441.12, 278,175.48 and 78,813.12 is: 118,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,441.12 : 278,175.48 = 78,813.12 : x
  2. Step 2: Convert to fraction form
    185,441.12/278,175.48 = 78,813.12/x
  3. Step 3: Cross multiply
    185,441.12x = 278,175.48 × 78,813.12
  4. Step 4: Simplify right side
    185,441.12x = 21,923,877,486.30
  5. Step 5: Solve for x
    x = 21,923,877,486.30/185,441.12
  6. Step 6: Final answer
    x = 118,225.55

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1.5x scale

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.