Home / 123,593.05-170,576.58-78,275.23

Finding the Fourth Proportional to 123,593.05, 170,576.58 and 78,275.23

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Solution

The fourth proportional to 123,593.05, 170,576.58 and 78,275.23 is: 108,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,593.05 : 170,576.58 = 78,275.23 : x
  2. Step 2: Convert to fraction form
    123,593.05/170,576.58 = 78,275.23/x
  3. Step 3: Cross multiply
    123,593.05x = 170,576.58 × 78,275.23
  4. Step 4: Simplify right side
    123,593.05x = 13,351,921,032.11
  5. Step 5: Solve for x
    x = 13,351,921,032.11/123,593.05
  6. Step 6: Final answer
    x = 108,031.33

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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.