Home / 170,020.80-254,642.40-86,817.60

Finding the Fourth Proportional to 170,020.80, 254,642.40 and 86,817.60

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Solution

The fourth proportional to 170,020.80, 254,642.40 and 86,817.60 is: 130,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,020.80 : 254,642.40 = 86,817.60 : x
  2. Step 2: Convert to fraction form
    170,020.80/254,642.40 = 86,817.60/x
  3. Step 3: Cross multiply
    170,020.80x = 254,642.40 × 86,817.60
  4. Step 4: Simplify right side
    170,020.80x = 22,107,442,026.24
  5. Step 5: Solve for x
    x = 22,107,442,026.24/170,020.80
  6. Step 6: Final answer
    x = 130,027.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.