Home / 132,728.32-183,165.33-79,015.20

Finding the Fourth Proportional to 132,728.32, 183,165.33 and 79,015.20

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Solution

The fourth proportional to 132,728.32, 183,165.33 and 79,015.20 is: 109,041.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,728.32 : 183,165.33 = 79,015.20 : x
  2. Step 2: Convert to fraction form
    132,728.32/183,165.33 = 79,015.20/x
  3. Step 3: Cross multiply
    132,728.32x = 183,165.33 × 79,015.20
  4. Step 4: Simplify right side
    132,728.32x = 14,472,845,183.02
  5. Step 5: Solve for x
    x = 14,472,845,183.02/132,728.32
  6. Step 6: Final answer
    x = 109,041.12

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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.