Home / 115,904.40-173,637.90-108,031.20

Finding the Fourth Proportional to 115,904.40, 173,637.90 and 108,031.20

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Solution

The fourth proportional to 115,904.40, 173,637.90 and 108,031.20 is: 161,842.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,904.40 : 173,637.90 = 108,031.20 : x
  2. Step 2: Convert to fraction form
    115,904.40/173,637.90 = 108,031.20/x
  3. Step 3: Cross multiply
    115,904.40x = 173,637.90 × 108,031.20
  4. Step 4: Simplify right side
    115,904.40x = 18,758,310,702.48
  5. Step 5: Solve for x
    x = 18,758,310,702.48/115,904.40
  6. Step 6: Final answer
    x = 161,842.96

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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.