Home / 147,611.70-221,439.15-77,496.30

Finding the Fourth Proportional to 147,611.70, 221,439.15 and 77,496.30

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Solution

The fourth proportional to 147,611.70, 221,439.15 and 77,496.30 is: 116,255.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,611.70 : 221,439.15 = 77,496.30 : x
  2. Step 2: Convert to fraction form
    147,611.70/221,439.15 = 77,496.30/x
  3. Step 3: Cross multiply
    147,611.70x = 221,439.15 × 77,496.30
  4. Step 4: Simplify right side
    147,611.70x = 17,160,714,800.15
  5. Step 5: Solve for x
    x = 17,160,714,800.15/147,611.70
  6. Step 6: Final answer
    x = 116,255.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.