Home / 210,002.20-314,966.85-76,813.90

Finding the Fourth Proportional to 210,002.20, 314,966.85 and 76,813.90

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Solution

The fourth proportional to 210,002.20, 314,966.85 and 76,813.90 is: 115,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,002.20 : 314,966.85 = 76,813.90 : x
  2. Step 2: Convert to fraction form
    210,002.20/314,966.85 = 76,813.90/x
  3. Step 3: Cross multiply
    210,002.20x = 314,966.85 × 76,813.90
  4. Step 4: Simplify right side
    210,002.20x = 24,193,832,119.22
  5. Step 5: Solve for x
    x = 24,193,832,119.22/210,002.20
  6. Step 6: Final answer
    x = 115,207.52

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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.