Home / 123,389.19-170,275.77-69,671.03

Finding the Fourth Proportional to 123,389.19, 170,275.77 and 69,671.03

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Solution

The fourth proportional to 123,389.19, 170,275.77 and 69,671.03 is: 96,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,389.19 : 170,275.77 = 69,671.03 : x
  2. Step 2: Convert to fraction form
    123,389.19/170,275.77 = 69,671.03/x
  3. Step 3: Cross multiply
    123,389.19x = 170,275.77 × 69,671.03
  4. Step 4: Simplify right side
    123,389.19x = 11,863,287,428.56
  5. Step 5: Solve for x
    x = 11,863,287,428.56/123,389.19
  6. Step 6: Final answer
    x = 96,145.27

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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.