Home / 221,084.95-305,010.61-136,054.39

Finding the Fourth Proportional to 221,084.95, 305,010.61 and 136,054.39

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Solution

The fourth proportional to 221,084.95, 305,010.61 and 136,054.39 is: 187,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,084.95 : 305,010.61 = 136,054.39 : x
  2. Step 2: Convert to fraction form
    221,084.95/305,010.61 = 136,054.39/x
  3. Step 3: Cross multiply
    221,084.95x = 305,010.61 × 136,054.39
  4. Step 4: Simplify right side
    221,084.95x = 41,498,032,487.08
  5. Step 5: Solve for x
    x = 41,498,032,487.08/221,084.95
  6. Step 6: Final answer
    x = 187,701.75

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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.