Home / 243,144.18-335,539.26-135,714.15

Finding the Fourth Proportional to 243,144.18, 335,539.26 and 135,714.15

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Solution

The fourth proportional to 243,144.18, 335,539.26 and 135,714.15 is: 187,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,144.18 : 335,539.26 = 135,714.15 : x
  2. Step 2: Convert to fraction form
    243,144.18/335,539.26 = 135,714.15/x
  3. Step 3: Cross multiply
    243,144.18x = 335,539.26 × 135,714.15
  4. Step 4: Simplify right side
    243,144.18x = 45,537,425,462.53
  5. Step 5: Solve for x
    x = 45,537,425,462.53/243,144.18
  6. Step 6: Final answer
    x = 187,285.69

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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.