Home / 137,008.10-205,512.15-112,404.35

Finding the Fourth Proportional to 137,008.10, 205,512.15 and 112,404.35

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Solution

The fourth proportional to 137,008.10, 205,512.15 and 112,404.35 is: 168,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,008.10 : 205,512.15 = 112,404.35 : x
  2. Step 2: Convert to fraction form
    137,008.10/205,512.15 = 112,404.35/x
  3. Step 3: Cross multiply
    137,008.10x = 205,512.15 × 112,404.35
  4. Step 4: Simplify right side
    137,008.10x = 23,100,459,637.85
  5. Step 5: Solve for x
    x = 23,100,459,637.85/137,008.10
  6. Step 6: Final answer
    x = 168,606.53

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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.