Home / 134,815.84-186,049.44-74,387.20

Finding the Fourth Proportional to 134,815.84, 186,049.44 and 74,387.20

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Solution

The fourth proportional to 134,815.84, 186,049.44 and 74,387.20 is: 102,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,815.84 : 186,049.44 = 74,387.20 : x
  2. Step 2: Convert to fraction form
    134,815.84/186,049.44 = 74,387.20/x
  3. Step 3: Cross multiply
    134,815.84x = 186,049.44 × 74,387.20
  4. Step 4: Simplify right side
    134,815.84x = 13,839,696,903.17
  5. Step 5: Solve for x
    x = 13,839,696,903.17/134,815.84
  6. Step 6: Final answer
    x = 102,656.31

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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.