Home / 134,571.41-185,688.25-76,419.08

Finding the Fourth Proportional to 134,571.41, 185,688.25 and 76,419.08

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Solution

The fourth proportional to 134,571.41, 185,688.25 and 76,419.08 is: 105,446.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,571.41 : 185,688.25 = 76,419.08 : x
  2. Step 2: Convert to fraction form
    134,571.41/185,688.25 = 76,419.08/x
  3. Step 3: Cross multiply
    134,571.41x = 185,688.25 × 76,419.08
  4. Step 4: Simplify right side
    134,571.41x = 14,190,125,231.81
  5. Step 5: Solve for x
    x = 14,190,125,231.81/134,571.41
  6. Step 6: Final answer
    x = 105,446.81

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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.