Home / 85,725.66-118,527.06-75,084.69

Finding the Fourth Proportional to 85,725.66, 118,527.06 and 75,084.69

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Solution

The fourth proportional to 85,725.66, 118,527.06 and 75,084.69 is: 103,814.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.66 : 118,527.06 = 75,084.69 : x
  2. Step 2: Convert to fraction form
    85,725.66/118,527.06 = 75,084.69/x
  3. Step 3: Cross multiply
    85,725.66x = 118,527.06 × 75,084.69
  4. Step 4: Simplify right side
    85,725.66x = 8,899,567,181.29
  5. Step 5: Solve for x
    x = 8,899,567,181.29/85,725.66
  6. Step 6: Final answer
    x = 103,814.51

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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.