Home / 123,343.68-170,217.38-75,623.34

Finding the Fourth Proportional to 123,343.68, 170,217.38 and 75,623.34

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Solution

The fourth proportional to 123,343.68, 170,217.38 and 75,623.34 is: 104,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,343.68 : 170,217.38 = 75,623.34 : x
  2. Step 2: Convert to fraction form
    123,343.68/170,217.38 = 75,623.34/x
  3. Step 3: Cross multiply
    123,343.68x = 170,217.38 × 75,623.34
  4. Step 4: Simplify right side
    123,343.68x = 12,872,406,801.65
  5. Step 5: Solve for x
    x = 12,872,406,801.65/123,343.68
  6. Step 6: Final answer
    x = 104,362.11

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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.