Home / 187,778.52-258,993.08-130,417.91

Finding the Fourth Proportional to 187,778.52, 258,993.08 and 130,417.91

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Solution

The fourth proportional to 187,778.52, 258,993.08 and 130,417.91 is: 179,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,778.52 : 258,993.08 = 130,417.91 : x
  2. Step 2: Convert to fraction form
    187,778.52/258,993.08 = 130,417.91/x
  3. Step 3: Cross multiply
    187,778.52x = 258,993.08 × 130,417.91
  4. Step 4: Simplify right side
    187,778.52x = 33,777,336,198.06
  5. Step 5: Solve for x
    x = 33,777,336,198.06/187,778.52
  6. Step 6: Final answer
    x = 179,878.59

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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.