Home / 140,215.85-210,279.65-45,424.04

Finding the Fourth Proportional to 140,215.85, 210,279.65 and 45,424.04

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Solution

The fourth proportional to 140,215.85, 210,279.65 and 45,424.04 is: 68,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,215.85 : 210,279.65 = 45,424.04 : x
  2. Step 2: Convert to fraction form
    140,215.85/210,279.65 = 45,424.04/x
  3. Step 3: Cross multiply
    140,215.85x = 210,279.65 × 45,424.04
  4. Step 4: Simplify right side
    140,215.85x = 9,551,751,232.79
  5. Step 5: Solve for x
    x = 9,551,751,232.79/140,215.85
  6. Step 6: Final answer
    x = 68,121.77

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1.5x scale

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.