Home / 134,880.91-186,135.67-74,451.57

Finding the Fourth Proportional to 134,880.91, 186,135.67 and 74,451.57

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Solution

The fourth proportional to 134,880.91, 186,135.67 and 74,451.57 is: 102,743.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,880.91 : 186,135.67 = 74,451.57 : x
  2. Step 2: Convert to fraction form
    134,880.91/186,135.67 = 74,451.57/x
  3. Step 3: Cross multiply
    134,880.91x = 186,135.67 × 74,451.57
  4. Step 4: Simplify right side
    134,880.91x = 13,858,092,026.90
  5. Step 5: Solve for x
    x = 13,858,092,026.90/134,880.91
  6. Step 6: Final answer
    x = 102,743.17

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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.