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Finding the Fourth Proportional to 92,420.20, 138,630.30 and 73,393.30

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Solution

The fourth proportional to 92,420.20, 138,630.30 and 73,393.30 is: 110,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,420.20 : 138,630.30 = 73,393.30 : x
  2. Step 2: Convert to fraction form
    92,420.20/138,630.30 = 73,393.30/x
  3. Step 3: Cross multiply
    92,420.20x = 138,630.30 × 73,393.30
  4. Step 4: Simplify right side
    92,420.20x = 10,174,535,196.99
  5. Step 5: Solve for x
    x = 10,174,535,196.99/92,420.20
  6. Step 6: Final answer
    x = 110,089.95

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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.