Home / 123,799.55-170,844.08-72,814.43

Finding the Fourth Proportional to 123,799.55, 170,844.08 and 72,814.43

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Solution

The fourth proportional to 123,799.55, 170,844.08 and 72,814.43 is: 100,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,799.55 : 170,844.08 = 72,814.43 : x
  2. Step 2: Convert to fraction form
    123,799.55/170,844.08 = 72,814.43/x
  3. Step 3: Cross multiply
    123,799.55x = 170,844.08 × 72,814.43
  4. Step 4: Simplify right side
    123,799.55x = 12,439,914,304.07
  5. Step 5: Solve for x
    x = 12,439,914,304.07/123,799.55
  6. Step 6: Final answer
    x = 100,484.33

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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.