Home / 140,472.32-210,609.90-51,714.45

Finding the Fourth Proportional to 140,472.32, 210,609.90 and 51,714.45

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Solution

The fourth proportional to 140,472.32, 210,609.90 and 51,714.45 is: 77,535.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,472.32 : 210,609.90 = 51,714.45 : x
  2. Step 2: Convert to fraction form
    140,472.32/210,609.90 = 51,714.45/x
  3. Step 3: Cross multiply
    140,472.32x = 210,609.90 × 51,714.45
  4. Step 4: Simplify right side
    140,472.32x = 10,891,575,143.06
  5. Step 5: Solve for x
    x = 10,891,575,143.06/140,472.32
  6. Step 6: Final answer
    x = 77,535.39

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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.