Home / 85,725.92-118,527.40-75,084.95

Finding the Fourth Proportional to 85,725.92, 118,527.40 and 75,084.95

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Solution

The fourth proportional to 85,725.92, 118,527.40 and 75,084.95 is: 103,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.92 : 118,527.40 = 75,084.95 : x
  2. Step 2: Convert to fraction form
    85,725.92/118,527.40 = 75,084.95/x
  3. Step 3: Cross multiply
    85,725.92x = 118,527.40 × 75,084.95
  4. Step 4: Simplify right side
    85,725.92x = 8,899,623,122.28
  5. Step 5: Solve for x
    x = 8,899,623,122.28/85,725.92
  6. Step 6: Final answer
    x = 103,814.85

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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.