Home / 187,103.88-258,209.16-102,219.12

Finding the Fourth Proportional to 187,103.88, 258,209.16 and 102,219.12

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Solution

The fourth proportional to 187,103.88, 258,209.16 and 102,219.12 is: 141,065.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,103.88 : 258,209.16 = 102,219.12 : x
  2. Step 2: Convert to fraction form
    187,103.88/258,209.16 = 102,219.12/x
  3. Step 3: Cross multiply
    187,103.88x = 258,209.16 × 102,219.12
  4. Step 4: Simplify right side
    187,103.88x = 26,393,913,111.14
  5. Step 5: Solve for x
    x = 26,393,913,111.14/187,103.88
  6. Step 6: Final answer
    x = 141,065.56

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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.