Home / 221,154.06-305,181.09-125,647.50

Finding the Fourth Proportional to 221,154.06, 305,181.09 and 125,647.50

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Solution

The fourth proportional to 221,154.06, 305,181.09 and 125,647.50 is: 173,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,154.06 : 305,181.09 = 125,647.50 : x
  2. Step 2: Convert to fraction form
    221,154.06/305,181.09 = 125,647.50/x
  3. Step 3: Cross multiply
    221,154.06x = 305,181.09 × 125,647.50
  4. Step 4: Simplify right side
    221,154.06x = 38,345,241,005.78
  5. Step 5: Solve for x
    x = 38,345,241,005.78/221,154.06
  6. Step 6: Final answer
    x = 173,387.01

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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.