Home / 140,326.85-210,343.25-65,385.20

Finding the Fourth Proportional to 140,326.85, 210,343.25 and 65,385.20

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Solution

The fourth proportional to 140,326.85, 210,343.25 and 65,385.20 is: 98,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,326.85 : 210,343.25 = 65,385.20 : x
  2. Step 2: Convert to fraction form
    140,326.85/210,343.25 = 65,385.20/x
  3. Step 3: Cross multiply
    140,326.85x = 210,343.25 × 65,385.20
  4. Step 4: Simplify right side
    140,326.85x = 13,753,336,159.22
  5. Step 5: Solve for x
    x = 13,753,336,159.22/140,326.85
  6. Step 6: Final answer
    x = 98,009.30

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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.