Home / 124,458.19-171,765.26-76,710.31

Finding the Fourth Proportional to 124,458.19, 171,765.26 and 76,710.31

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Solution

The fourth proportional to 124,458.19, 171,765.26 and 76,710.31 is: 105,868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,458.19 : 171,765.26 = 76,710.31 : x
  2. Step 2: Convert to fraction form
    124,458.19/171,765.26 = 76,710.31/x
  3. Step 3: Cross multiply
    124,458.19x = 171,765.26 × 76,710.31
  4. Step 4: Simplify right side
    124,458.19x = 13,176,165,912.42
  5. Step 5: Solve for x
    x = 13,176,165,912.42/124,458.19
  6. Step 6: Final answer
    x = 105,868.21

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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.