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Finding the Fourth Proportional to 112,023.20, 167,905.20 and 45,430.40

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Solution

The fourth proportional to 112,023.20, 167,905.20 and 45,430.40 is: 68,093.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,023.20 : 167,905.20 = 45,430.40 : x
  2. Step 2: Convert to fraction form
    112,023.20/167,905.20 = 45,430.40/x
  3. Step 3: Cross multiply
    112,023.20x = 167,905.20 × 45,430.40
  4. Step 4: Simplify right side
    112,023.20x = 7,628,000,398.08
  5. Step 5: Solve for x
    x = 7,628,000,398.08/112,023.20
  6. Step 6: Final answer
    x = 68,093.04

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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.