Home / 231,281.19-319,163.90-130,677.03

Finding the Fourth Proportional to 231,281.19, 319,163.90 and 130,677.03

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Solution

The fourth proportional to 231,281.19, 319,163.90 and 130,677.03 is: 180,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,281.19 : 319,163.90 = 130,677.03 : x
  2. Step 2: Convert to fraction form
    231,281.19/319,163.90 = 130,677.03/x
  3. Step 3: Cross multiply
    231,281.19x = 319,163.90 × 130,677.03
  4. Step 4: Simplify right side
    231,281.19x = 41,707,389,881.83
  5. Step 5: Solve for x
    x = 41,707,389,881.83/231,281.19
  6. Step 6: Final answer
    x = 180,331.96

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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.