Home / 134,585.46-185,719.05-80,838.54

Finding the Fourth Proportional to 134,585.46, 185,719.05 and 80,838.54

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Solution

The fourth proportional to 134,585.46, 185,719.05 and 80,838.54 is: 111,551.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,585.46 : 185,719.05 = 80,838.54 : x
  2. Step 2: Convert to fraction form
    134,585.46/185,719.05 = 80,838.54/x
  3. Step 3: Cross multiply
    134,585.46x = 185,719.05 × 80,838.54
  4. Step 4: Simplify right side
    134,585.46x = 15,013,256,852.19
  5. Step 5: Solve for x
    x = 15,013,256,852.19/134,585.46
  6. Step 6: Final answer
    x = 111,551.85

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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.