Home / 291,069.28-436,622.39-91,397.55

Finding the Fourth Proportional to 291,069.28, 436,622.39 and 91,397.55

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Solution

The fourth proportional to 291,069.28, 436,622.39 and 91,397.55 is: 137,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,069.28 : 436,622.39 = 91,397.55 : x
  2. Step 2: Convert to fraction form
    291,069.28/436,622.39 = 91,397.55/x
  3. Step 3: Cross multiply
    291,069.28x = 436,622.39 × 91,397.55
  4. Step 4: Simplify right side
    291,069.28x = 39,906,216,409.39
  5. Step 5: Solve for x
    x = 39,906,216,409.39/291,069.28
  6. Step 6: Final answer
    x = 137,102.12

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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.