Home / 187,115.54-258,210.05-102,216.98

Finding the Fourth Proportional to 187,115.54, 258,210.05 and 102,216.98

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Solution

The fourth proportional to 187,115.54, 258,210.05 and 102,216.98 is: 141,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,115.54 : 258,210.05 = 102,216.98 : x
  2. Step 2: Convert to fraction form
    187,115.54/258,210.05 = 102,216.98/x
  3. Step 3: Cross multiply
    187,115.54x = 258,210.05 × 102,216.98
  4. Step 4: Simplify right side
    187,115.54x = 26,393,451,516.65
  5. Step 5: Solve for x
    x = 26,393,451,516.65/187,115.54
  6. Step 6: Final answer
    x = 141,054.30

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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.