Home / 134,812.36-186,049.74-77,470.12

Finding the Fourth Proportional to 134,812.36, 186,049.74 and 77,470.12

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Solution

The fourth proportional to 134,812.36, 186,049.74 and 77,470.12 is: 106,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,812.36 : 186,049.74 = 77,470.12 : x
  2. Step 2: Convert to fraction form
    134,812.36/186,049.74 = 77,470.12/x
  3. Step 3: Cross multiply
    134,812.36x = 186,049.74 × 77,470.12
  4. Step 4: Simplify right side
    134,812.36x = 14,413,295,683.77
  5. Step 5: Solve for x
    x = 14,413,295,683.77/134,812.36
  6. Step 6: Final answer
    x = 106,913.76

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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.