Home / 209,811.34-314,775.41-91,493.10

Finding the Fourth Proportional to 209,811.34, 314,775.41 and 91,493.10

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Solution

The fourth proportional to 209,811.34, 314,775.41 and 91,493.10 is: 137,265.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,811.34 : 314,775.41 = 91,493.10 : x
  2. Step 2: Convert to fraction form
    209,811.34/314,775.41 = 91,493.10/x
  3. Step 3: Cross multiply
    209,811.34x = 314,775.41 × 91,493.10
  4. Step 4: Simplify right side
    209,811.34x = 28,799,778,064.67
  5. Step 5: Solve for x
    x = 28,799,778,064.67/209,811.34
  6. Step 6: Final answer
    x = 137,265.12

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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.