Home / 210,001.20-314,965.35-76,812.90

Finding the Fourth Proportional to 210,001.20, 314,965.35 and 76,812.90

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Solution

The fourth proportional to 210,001.20, 314,965.35 and 76,812.90 is: 115,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,001.20 : 314,965.35 = 76,812.90 : x
  2. Step 2: Convert to fraction form
    210,001.20/314,965.35 = 76,812.90/x
  3. Step 3: Cross multiply
    210,001.20x = 314,965.35 × 76,812.90
  4. Step 4: Simplify right side
    210,001.20x = 24,193,401,933.02
  5. Step 5: Solve for x
    x = 24,193,401,933.02/210,001.20
  6. Step 6: Final answer
    x = 115,206.02

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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.