Home / 134,134.65-185,105.52-72,880.97

Finding the Fourth Proportional to 134,134.65, 185,105.52 and 72,880.97

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Solution

The fourth proportional to 134,134.65, 185,105.52 and 72,880.97 is: 100,575.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,134.65 : 185,105.52 = 72,880.97 : x
  2. Step 2: Convert to fraction form
    134,134.65/185,105.52 = 72,880.97/x
  3. Step 3: Cross multiply
    134,134.65x = 185,105.52 × 72,880.97
  4. Step 4: Simplify right side
    134,134.65x = 13,490,668,924.43
  5. Step 5: Solve for x
    x = 13,490,668,924.43/134,134.65
  6. Step 6: Final answer
    x = 100,575.57

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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.