Home / 268,756.79-403,172.24-91,216.13

Finding the Fourth Proportional to 268,756.79, 403,172.24 and 91,216.13

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Solution

The fourth proportional to 268,756.79, 403,172.24 and 91,216.13 is: 136,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,756.79 : 403,172.24 = 91,216.13 : x
  2. Step 2: Convert to fraction form
    268,756.79/403,172.24 = 91,216.13/x
  3. Step 3: Cross multiply
    268,756.79x = 403,172.24 × 91,216.13
  4. Step 4: Simplify right side
    268,756.79x = 36,775,808,984.29
  5. Step 5: Solve for x
    x = 36,775,808,984.29/268,756.79
  6. Step 6: Final answer
    x = 136,836.76

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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.