Home / 231,014.40-318,796.40-129,041.52

Finding the Fourth Proportional to 231,014.40, 318,796.40 and 129,041.52

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Solution

The fourth proportional to 231,014.40, 318,796.40 and 129,041.52 is: 178,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,014.40 : 318,796.40 = 129,041.52 : x
  2. Step 2: Convert to fraction form
    231,014.40/318,796.40 = 129,041.52/x
  3. Step 3: Cross multiply
    231,014.40x = 318,796.40 × 129,041.52
  4. Step 4: Simplify right side
    231,014.40x = 41,137,972,026.53
  5. Step 5: Solve for x
    x = 41,137,972,026.53/231,014.40
  6. Step 6: Final answer
    x = 178,075.36

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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.