Home / 109,023.40-163,543.20-38,893.60

Finding the Fourth Proportional to 109,023.40, 163,543.20 and 38,893.60

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Solution

The fourth proportional to 109,023.40, 163,543.20 and 38,893.60 is: 58,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,023.40 : 163,543.20 = 38,893.60 : x
  2. Step 2: Convert to fraction form
    109,023.40/163,543.20 = 38,893.60/x
  3. Step 3: Cross multiply
    109,023.40x = 163,543.20 × 38,893.60
  4. Step 4: Simplify right side
    109,023.40x = 6,360,783,803.52
  5. Step 5: Solve for x
    x = 6,360,783,803.52/109,023.40
  6. Step 6: Final answer
    x = 58,343.29

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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.