Home / 147,731.80-221,597.70-100,492.60

Finding the Fourth Proportional to 147,731.80, 221,597.70 and 100,492.60

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Solution

The fourth proportional to 147,731.80, 221,597.70 and 100,492.60 is: 150,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,731.80 : 221,597.70 = 100,492.60 : x
  2. Step 2: Convert to fraction form
    147,731.80/221,597.70 = 100,492.60/x
  3. Step 3: Cross multiply
    147,731.80x = 221,597.70 × 100,492.60
  4. Step 4: Simplify right side
    147,731.80x = 22,268,929,027.02
  5. Step 5: Solve for x
    x = 22,268,929,027.02/147,731.80
  6. Step 6: Final answer
    x = 150,738.90

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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.