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Finding the Fourth Proportional to 173,722.20, 239,742.50 and 102,101.20

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Solution

The fourth proportional to 173,722.20, 239,742.50 and 102,101.20 is: 140,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,722.20 : 239,742.50 = 102,101.20 : x
  2. Step 2: Convert to fraction form
    173,722.20/239,742.50 = 102,101.20/x
  3. Step 3: Cross multiply
    173,722.20x = 239,742.50 × 102,101.20
  4. Step 4: Simplify right side
    173,722.20x = 24,477,996,941
  5. Step 5: Solve for x
    x = 24,477,996,941/173,722.20
  6. Step 6: Final answer
    x = 140,903.10

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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.