Home / 98,704.17-136,239.17-58,431.78

Finding the Fourth Proportional to 98,704.17, 136,239.17 and 58,431.78

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Solution

The fourth proportional to 98,704.17, 136,239.17 and 58,431.78 is: 80,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,704.17 : 136,239.17 = 58,431.78 : x
  2. Step 2: Convert to fraction form
    98,704.17/136,239.17 = 58,431.78/x
  3. Step 3: Cross multiply
    98,704.17x = 136,239.17 × 58,431.78
  4. Step 4: Simplify right side
    98,704.17x = 7,960,696,916.66
  5. Step 5: Solve for x
    x = 7,960,696,916.66/98,704.17
  6. Step 6: Final answer
    x = 80,652.08

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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.