Home / 133,109.28-183,698.26-72,685.56

Finding the Fourth Proportional to 133,109.28, 183,698.26 and 72,685.56

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Solution

The fourth proportional to 133,109.28, 183,698.26 and 72,685.56 is: 100,310.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,109.28 : 183,698.26 = 72,685.56 : x
  2. Step 2: Convert to fraction form
    133,109.28/183,698.26 = 72,685.56/x
  3. Step 3: Cross multiply
    133,109.28x = 183,698.26 × 72,685.56
  4. Step 4: Simplify right side
    133,109.28x = 13,352,210,899.13
  5. Step 5: Solve for x
    x = 13,352,210,899.13/133,109.28
  6. Step 6: Final answer
    x = 100,310.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.