Home / 137,543.04-205,383.20-109,144.16

Finding the Fourth Proportional to 137,543.04, 205,383.20 and 109,144.16

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Solution

The fourth proportional to 137,543.04, 205,383.20 and 109,144.16 is: 162,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,543.04 : 205,383.20 = 109,144.16 : x
  2. Step 2: Convert to fraction form
    137,543.04/205,383.20 = 109,144.16/x
  3. Step 3: Cross multiply
    137,543.04x = 205,383.20 × 109,144.16
  4. Step 4: Simplify right side
    137,543.04x = 22,416,376,842.11
  5. Step 5: Solve for x
    x = 22,416,376,842.11/137,543.04
  6. Step 6: Final answer
    x = 162,977.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.