Home / 132,983.32-183,540.72-79,271.76

Finding the Fourth Proportional to 132,983.32, 183,540.72 and 79,271.76

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Solution

The fourth proportional to 132,983.32, 183,540.72 and 79,271.76 is: 109,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,983.32 : 183,540.72 = 79,271.76 : x
  2. Step 2: Convert to fraction form
    132,983.32/183,540.72 = 79,271.76/x
  3. Step 3: Cross multiply
    132,983.32x = 183,540.72 × 79,271.76
  4. Step 4: Simplify right side
    132,983.32x = 14,549,595,906.07
  5. Step 5: Solve for x
    x = 14,549,595,906.07/132,983.32
  6. Step 6: Final answer
    x = 109,409.18

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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.