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Finding the Fourth Proportional to 161,902.40, 223,477.80 and 108,199.40

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Solution

The fourth proportional to 161,902.40, 223,477.80 and 108,199.40 is: 149,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,902.40 : 223,477.80 = 108,199.40 : x
  2. Step 2: Convert to fraction form
    161,902.40/223,477.80 = 108,199.40/x
  3. Step 3: Cross multiply
    161,902.40x = 223,477.80 × 108,199.40
  4. Step 4: Simplify right side
    161,902.40x = 24,180,163,873.32
  5. Step 5: Solve for x
    x = 24,180,163,873.32/161,902.40
  6. Step 6: Final answer
    x = 149,350.25

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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.