Home / 209,631.95-314,466.15-67,491.53

Finding the Fourth Proportional to 209,631.95, 314,466.15 and 67,491.53

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Solution

The fourth proportional to 209,631.95, 314,466.15 and 67,491.53 is: 101,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,631.95 : 314,466.15 = 67,491.53 : x
  2. Step 2: Convert to fraction form
    209,631.95/314,466.15 = 67,491.53/x
  3. Step 3: Cross multiply
    209,631.95x = 314,466.15 × 67,491.53
  4. Step 4: Simplify right side
    209,631.95x = 21,223,801,596.71
  5. Step 5: Solve for x
    x = 21,223,801,596.71/209,631.95
  6. Step 6: Final answer
    x = 101,243.16

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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.