Home / 112,406.28-155,125.11-64,659.54

Finding the Fourth Proportional to 112,406.28, 155,125.11 and 64,659.54

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Solution

The fourth proportional to 112,406.28, 155,125.11 and 64,659.54 is: 89,232.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,406.28 : 155,125.11 = 64,659.54 : x
  2. Step 2: Convert to fraction form
    112,406.28/155,125.11 = 64,659.54/x
  3. Step 3: Cross multiply
    112,406.28x = 155,125.11 × 64,659.54
  4. Step 4: Simplify right side
    112,406.28x = 10,030,318,255.05
  5. Step 5: Solve for x
    x = 10,030,318,255.05/112,406.28
  6. Step 6: Final answer
    x = 89,232.72

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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.