Home / 209,389.10-314,136.41-67,247.15

Finding the Fourth Proportional to 209,389.10, 314,136.41 and 67,247.15

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Solution

The fourth proportional to 209,389.10, 314,136.41 and 67,247.15 is: 100,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,389.10 : 314,136.41 = 67,247.15 : x
  2. Step 2: Convert to fraction form
    209,389.10/314,136.41 = 67,247.15/x
  3. Step 3: Cross multiply
    209,389.10x = 314,136.41 × 67,247.15
  4. Step 4: Simplify right side
    209,389.10x = 21,124,776,376.81
  5. Step 5: Solve for x
    x = 21,124,776,376.81/209,389.10
  6. Step 6: Final answer
    x = 100,887.66

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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.