Home / 242,514.38-334,680-135,084.26

Finding the Fourth Proportional to 242,514.38, 334,680 and 135,084.26

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Solution

The fourth proportional to 242,514.38, 334,680 and 135,084.26 is: 186,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,514.38 : 334,680 = 135,084.26 : x
  2. Step 2: Convert to fraction form
    242,514.38/334,680 = 135,084.26/x
  3. Step 3: Cross multiply
    242,514.38x = 334,680 × 135,084.26
  4. Step 4: Simplify right side
    242,514.38x = 45,210,000,136.80
  5. Step 5: Solve for x
    x = 45,210,000,136.80/242,514.38
  6. Step 6: Final answer
    x = 186,421.94

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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.