Home / 147,535.80-221,012.10-80,856.60

Finding the Fourth Proportional to 147,535.80, 221,012.10 and 80,856.60

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Solution

The fourth proportional to 147,535.80, 221,012.10 and 80,856.60 is: 121,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,535.80 : 221,012.10 = 80,856.60 : x
  2. Step 2: Convert to fraction form
    147,535.80/221,012.10 = 80,856.60/x
  3. Step 3: Cross multiply
    147,535.80x = 221,012.10 × 80,856.60
  4. Step 4: Simplify right side
    147,535.80x = 17,870,286,964.86
  5. Step 5: Solve for x
    x = 17,870,286,964.86/147,535.80
  6. Step 6: Final answer
    x = 121,125.09

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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.