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Finding the Fourth Proportional to 92,267.70, 138,401.55 and 90,518.10

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Solution

The fourth proportional to 92,267.70, 138,401.55 and 90,518.10 is: 135,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,267.70 : 138,401.55 = 90,518.10 : x
  2. Step 2: Convert to fraction form
    92,267.70/138,401.55 = 90,518.10/x
  3. Step 3: Cross multiply
    92,267.70x = 138,401.55 × 90,518.10
  4. Step 4: Simplify right side
    92,267.70x = 12,527,845,343.06
  5. Step 5: Solve for x
    x = 12,527,845,343.06/92,267.70
  6. Step 6: Final answer
    x = 135,777.15

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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.