Home / 147,904.20-221,856.30-84,918.60

Finding the Fourth Proportional to 147,904.20, 221,856.30 and 84,918.60

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Solution

The fourth proportional to 147,904.20, 221,856.30 and 84,918.60 is: 127,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,904.20 : 221,856.30 = 84,918.60 : x
  2. Step 2: Convert to fraction form
    147,904.20/221,856.30 = 84,918.60/x
  3. Step 3: Cross multiply
    147,904.20x = 221,856.30 × 84,918.60
  4. Step 4: Simplify right side
    147,904.20x = 18,839,726,397.18
  5. Step 5: Solve for x
    x = 18,839,726,397.18/147,904.20
  6. Step 6: Final answer
    x = 127,377.90

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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.