Home / 123,542.19-170,609.19-105,532.23

Finding the Fourth Proportional to 123,542.19, 170,609.19 and 105,532.23

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Solution

The fourth proportional to 123,542.19, 170,609.19 and 105,532.23 is: 145,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,542.19 : 170,609.19 = 105,532.23 : x
  2. Step 2: Convert to fraction form
    123,542.19/170,609.19 = 105,532.23/x
  3. Step 3: Cross multiply
    123,542.19x = 170,609.19 × 105,532.23
  4. Step 4: Simplify right side
    123,542.19x = 18,004,768,279.19
  5. Step 5: Solve for x
    x = 18,004,768,279.19/123,542.19
  6. Step 6: Final answer
    x = 145,737.81

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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.