Home / 210,788.06-316,186.20-77,599.76

Finding the Fourth Proportional to 210,788.06, 316,186.20 and 77,599.76

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Solution

The fourth proportional to 210,788.06, 316,186.20 and 77,599.76 is: 116,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,788.06 : 316,186.20 = 77,599.76 : x
  2. Step 2: Convert to fraction form
    210,788.06/316,186.20 = 77,599.76/x
  3. Step 3: Cross multiply
    210,788.06x = 316,186.20 × 77,599.76
  4. Step 4: Simplify right side
    210,788.06x = 24,535,971,654.38
  5. Step 5: Solve for x
    x = 24,535,971,654.38/210,788.06
  6. Step 6: Final answer
    x = 116,401.15

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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.