Home / 209,300.74-314,034.96-76,190.20

Finding the Fourth Proportional to 209,300.74, 314,034.96 and 76,190.20

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Solution

The fourth proportional to 209,300.74, 314,034.96 and 76,190.20 is: 114,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,300.74 : 314,034.96 = 76,190.20 : x
  2. Step 2: Convert to fraction form
    209,300.74/314,034.96 = 76,190.20/x
  3. Step 3: Cross multiply
    209,300.74x = 314,034.96 × 76,190.20
  4. Step 4: Simplify right side
    209,300.74x = 23,926,386,409.39
  5. Step 5: Solve for x
    x = 23,926,386,409.39/209,300.74
  6. Step 6: Final answer
    x = 114,315.82

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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.