Home / 100,689.46-151,038.78-50,710.02

Finding the Fourth Proportional to 100,689.46, 151,038.78 and 50,710.02

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Solution

The fourth proportional to 100,689.46, 151,038.78 and 50,710.02 is: 76,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,689.46 : 151,038.78 = 50,710.02 : x
  2. Step 2: Convert to fraction form
    100,689.46/151,038.78 = 50,710.02/x
  3. Step 3: Cross multiply
    100,689.46x = 151,038.78 × 50,710.02
  4. Step 4: Simplify right side
    100,689.46x = 7,659,179,554.58
  5. Step 5: Solve for x
    x = 7,659,179,554.58/100,689.46
  6. Step 6: Final answer
    x = 76,067.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.