Home / 112,750.38-155,560.50-64,997.64

Finding the Fourth Proportional to 112,750.38, 155,560.50 and 64,997.64

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Solution

The fourth proportional to 112,750.38, 155,560.50 and 64,997.64 is: 89,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,750.38 : 155,560.50 = 64,997.64 : x
  2. Step 2: Convert to fraction form
    112,750.38/155,560.50 = 64,997.64/x
  3. Step 3: Cross multiply
    112,750.38x = 155,560.50 × 64,997.64
  4. Step 4: Simplify right side
    112,750.38x = 10,111,065,377.22
  5. Step 5: Solve for x
    x = 10,111,065,377.22/112,750.38
  6. Step 6: Final answer
    x = 89,676.55

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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.