Home / 134,826.89-186,053.78-74,385.64

Finding the Fourth Proportional to 134,826.89, 186,053.78 and 74,385.64

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Solution

The fourth proportional to 134,826.89, 186,053.78 and 74,385.64 is: 102,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,826.89 : 186,053.78 = 74,385.64 : x
  2. Step 2: Convert to fraction form
    134,826.89/186,053.78 = 74,385.64/x
  3. Step 3: Cross multiply
    134,826.89x = 186,053.78 × 74,385.64
  4. Step 4: Simplify right side
    134,826.89x = 13,839,728,197.52
  5. Step 5: Solve for x
    x = 13,839,728,197.52/134,826.89
  6. Step 6: Final answer
    x = 102,648.13

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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.