Home / 135,390.25-186,838.04-74,957.27

Finding the Fourth Proportional to 135,390.25, 186,838.04 and 74,957.27

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Solution

The fourth proportional to 135,390.25, 186,838.04 and 74,957.27 is: 103,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,390.25 : 186,838.04 = 74,957.27 : x
  2. Step 2: Convert to fraction form
    135,390.25/186,838.04 = 74,957.27/x
  3. Step 3: Cross multiply
    135,390.25x = 186,838.04 × 74,957.27
  4. Step 4: Simplify right side
    135,390.25x = 14,004,868,663.75
  5. Step 5: Solve for x
    x = 14,004,868,663.75/135,390.25
  6. Step 6: Final answer
    x = 103,440.75

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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.