Home / 145,168.76-200,282.29-91,458.56

Finding the Fourth Proportional to 145,168.76, 200,282.29 and 91,458.56

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Solution

The fourth proportional to 145,168.76, 200,282.29 and 91,458.56 is: 126,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,168.76 : 200,282.29 = 91,458.56 : x
  2. Step 2: Convert to fraction form
    145,168.76/200,282.29 = 91,458.56/x
  3. Step 3: Cross multiply
    145,168.76x = 200,282.29 × 91,458.56
  4. Step 4: Simplify right side
    145,168.76x = 18,317,528,606.84
  5. Step 5: Solve for x
    x = 18,317,528,606.84/145,168.76
  6. Step 6: Final answer
    x = 126,180.93

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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.