Home / 154,013.97-212,533.06-86,029.86

Finding the Fourth Proportional to 154,013.97, 212,533.06 and 86,029.86

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Solution

The fourth proportional to 154,013.97, 212,533.06 and 86,029.86 is: 118,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,013.97 : 212,533.06 = 86,029.86 : x
  2. Step 2: Convert to fraction form
    154,013.97/212,533.06 = 86,029.86/x
  3. Step 3: Cross multiply
    154,013.97x = 212,533.06 × 86,029.86
  4. Step 4: Simplify right side
    154,013.97x = 18,284,189,397.17
  5. Step 5: Solve for x
    x = 18,284,189,397.17/154,013.97
  6. Step 6: Final answer
    x = 118,717.73

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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.