Home / 134,906.31-186,192.68-80,465.40

Finding the Fourth Proportional to 134,906.31, 186,192.68 and 80,465.40

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Solution

The fourth proportional to 134,906.31, 186,192.68 and 80,465.40 is: 111,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,906.31 : 186,192.68 = 80,465.40 : x
  2. Step 2: Convert to fraction form
    134,906.31/186,192.68 = 80,465.40/x
  3. Step 3: Cross multiply
    134,906.31x = 186,192.68 × 80,465.40
  4. Step 4: Simplify right side
    134,906.31x = 14,982,068,070.95
  5. Step 5: Solve for x
    x = 14,982,068,070.95/134,906.31
  6. Step 6: Final answer
    x = 111,055.35

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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.