Home / 123,592.05-170,575.20-78,274.23

Finding the Fourth Proportional to 123,592.05, 170,575.20 and 78,274.23

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Solution

The fourth proportional to 123,592.05, 170,575.20 and 78,274.23 is: 108,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,592.05 : 170,575.20 = 78,274.23 : x
  2. Step 2: Convert to fraction form
    123,592.05/170,575.20 = 78,274.23/x
  3. Step 3: Cross multiply
    123,592.05x = 170,575.20 × 78,274.23
  4. Step 4: Simplify right side
    123,592.05x = 13,351,642,437.10
  5. Step 5: Solve for x
    x = 13,351,642,437.10/123,592.05
  6. Step 6: Final answer
    x = 108,029.95

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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.