Home / 187,211.52-258,351.36-102,328.32

Finding the Fourth Proportional to 187,211.52, 258,351.36 and 102,328.32

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Solution

The fourth proportional to 187,211.52, 258,351.36 and 102,328.32 is: 141,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,211.52 : 258,351.36 = 102,328.32 : x
  2. Step 2: Convert to fraction form
    187,211.52/258,351.36 = 102,328.32/x
  3. Step 3: Cross multiply
    187,211.52x = 258,351.36 × 102,328.32
  4. Step 4: Simplify right side
    187,211.52x = 26,436,660,638.52
  5. Step 5: Solve for x
    x = 26,436,660,638.52/187,211.52
  6. Step 6: Final answer
    x = 141,212.79

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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.