Home / 85,441.18-118,065.10-74,074.18

Finding the Fourth Proportional to 85,441.18, 118,065.10 and 74,074.18

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Solution

The fourth proportional to 85,441.18, 118,065.10 and 74,074.18 is: 102,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,441.18 : 118,065.10 = 74,074.18 : x
  2. Step 2: Convert to fraction form
    85,441.18/118,065.10 = 74,074.18/x
  3. Step 3: Cross multiply
    85,441.18x = 118,065.10 × 74,074.18
  4. Step 4: Simplify right side
    85,441.18x = 8,745,575,469.12
  5. Step 5: Solve for x
    x = 8,745,575,469.12/85,441.18
  6. Step 6: Final answer
    x = 102,357.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.