Home / 123,506.01-170,372.55-75,122.74

Finding the Fourth Proportional to 123,506.01, 170,372.55 and 75,122.74

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Solution

The fourth proportional to 123,506.01, 170,372.55 and 75,122.74 is: 103,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,506.01 : 170,372.55 = 75,122.74 : x
  2. Step 2: Convert to fraction form
    123,506.01/170,372.55 = 75,122.74/x
  3. Step 3: Cross multiply
    123,506.01x = 170,372.55 × 75,122.74
  4. Step 4: Simplify right side
    123,506.01x = 12,798,852,776.79
  5. Step 5: Solve for x
    x = 12,798,852,776.79/123,506.01
  6. Step 6: Final answer
    x = 103,629.39

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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.