Home / 117,775.83-162,515.92-79,618.38

Finding the Fourth Proportional to 117,775.83, 162,515.92 and 79,618.38

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Solution

The fourth proportional to 117,775.83, 162,515.92 and 79,618.38 is: 109,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,775.83 : 162,515.92 = 79,618.38 : x
  2. Step 2: Convert to fraction form
    117,775.83/162,515.92 = 79,618.38/x
  3. Step 3: Cross multiply
    117,775.83x = 162,515.92 × 79,618.38
  4. Step 4: Simplify right side
    117,775.83x = 12,939,254,274.61
  5. Step 5: Solve for x
    x = 12,939,254,274.61/117,775.83
  6. Step 6: Final answer
    x = 109,863.41

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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.