Home / 98,715.97-136,228.07-55,704.58

Finding the Fourth Proportional to 98,715.97, 136,228.07 and 55,704.58

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Solution

The fourth proportional to 98,715.97, 136,228.07 and 55,704.58 is: 76,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,715.97 : 136,228.07 = 55,704.58 : x
  2. Step 2: Convert to fraction form
    98,715.97/136,228.07 = 55,704.58/x
  3. Step 3: Cross multiply
    98,715.97x = 136,228.07 × 55,704.58
  4. Step 4: Simplify right side
    98,715.97x = 7,588,527,423.56
  5. Step 5: Solve for x
    x = 7,588,527,423.56/98,715.97
  6. Step 6: Final answer
    x = 76,872.34

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1.5x scale

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.