Home / 134,574-185,703.20-80,827.04

Finding the Fourth Proportional to 134,574, 185,703.20 and 80,827.04

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Solution

The fourth proportional to 134,574, 185,703.20 and 80,827.04 is: 111,535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,574 : 185,703.20 = 80,827.04 : x
  2. Step 2: Convert to fraction form
    134,574/185,703.20 = 80,827.04/x
  3. Step 3: Cross multiply
    134,574x = 185,703.20 × 80,827.04
  4. Step 4: Simplify right side
    134,574x = 15,009,839,974.53
  5. Step 5: Solve for x
    x = 15,009,839,974.53/134,574
  6. Step 6: Final answer
    x = 111,535.96

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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.