Home / 209,867.60-314,874.30-91,623.80

Finding the Fourth Proportional to 209,867.60, 314,874.30 and 91,623.80

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Solution

The fourth proportional to 209,867.60, 314,874.30 and 91,623.80 is: 137,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,867.60 : 314,874.30 = 91,623.80 : x
  2. Step 2: Convert to fraction form
    209,867.60/314,874.30 = 91,623.80/x
  3. Step 3: Cross multiply
    209,867.60x = 314,874.30 × 91,623.80
  4. Step 4: Simplify right side
    209,867.60x = 28,849,979,888.34
  5. Step 5: Solve for x
    x = 28,849,979,888.34/209,867.60
  6. Step 6: Final answer
    x = 137,467.53

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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.