Home / 145,714.90-218,514.74-70,812.86

Finding the Fourth Proportional to 145,714.90, 218,514.74 and 70,812.86

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Solution

The fourth proportional to 145,714.90, 218,514.74 and 70,812.86 is: 106,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,714.90 : 218,514.74 = 70,812.86 : x
  2. Step 2: Convert to fraction form
    145,714.90/218,514.74 = 70,812.86/x
  3. Step 3: Cross multiply
    145,714.90x = 218,514.74 × 70,812.86
  4. Step 4: Simplify right side
    145,714.90x = 15,473,653,691.56
  5. Step 5: Solve for x
    x = 15,473,653,691.56/145,714.90
  6. Step 6: Final answer
    x = 106,191.29

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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.