Home / 231,308.88-319,170-134,534.16

Finding the Fourth Proportional to 231,308.88, 319,170 and 134,534.16

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Solution

The fourth proportional to 231,308.88, 319,170 and 134,534.16 is: 185,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,308.88 : 319,170 = 134,534.16 : x
  2. Step 2: Convert to fraction form
    231,308.88/319,170 = 134,534.16/x
  3. Step 3: Cross multiply
    231,308.88x = 319,170 × 134,534.16
  4. Step 4: Simplify right side
    231,308.88x = 42,939,267,847.20
  5. Step 5: Solve for x
    x = 42,939,267,847.20/231,308.88
  6. Step 6: Final answer
    x = 185,636.05

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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.