Home / 123,290.16-170,142.48-69,576.36

Finding the Fourth Proportional to 123,290.16, 170,142.48 and 69,576.36

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Solution

The fourth proportional to 123,290.16, 170,142.48 and 69,576.36 is: 96,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,290.16 : 170,142.48 = 69,576.36 : x
  2. Step 2: Convert to fraction form
    123,290.16/170,142.48 = 69,576.36/x
  3. Step 3: Cross multiply
    123,290.16x = 170,142.48 × 69,576.36
  4. Step 4: Simplify right side
    123,290.16x = 11,837,894,439.77
  5. Step 5: Solve for x
    x = 11,837,894,439.77/123,290.16
  6. Step 6: Final answer
    x = 96,016.54

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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.