Home / 243,435.72-335,902.14-136,000.20

Finding the Fourth Proportional to 243,435.72, 335,902.14 and 136,000.20

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Solution

The fourth proportional to 243,435.72, 335,902.14 and 136,000.20 is: 187,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,435.72 : 335,902.14 = 136,000.20 : x
  2. Step 2: Convert to fraction form
    243,435.72/335,902.14 = 136,000.20/x
  3. Step 3: Cross multiply
    243,435.72x = 335,902.14 × 136,000.20
  4. Step 4: Simplify right side
    243,435.72x = 45,682,758,220.43
  5. Step 5: Solve for x
    x = 45,682,758,220.43/243,435.72
  6. Step 6: Final answer
    x = 187,658.40

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1.5x scale

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.