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Finding the Fourth Proportional to 99,477.60, 149,101.20 and 40,274.40

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Solution

The fourth proportional to 99,477.60, 149,101.20 and 40,274.40 is: 60,364.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,477.60 : 149,101.20 = 40,274.40 : x
  2. Step 2: Convert to fraction form
    99,477.60/149,101.20 = 40,274.40/x
  3. Step 3: Cross multiply
    99,477.60x = 149,101.20 × 40,274.40
  4. Step 4: Simplify right side
    99,477.60x = 6,004,961,369.28
  5. Step 5: Solve for x
    x = 6,004,961,369.28/99,477.60
  6. Step 6: Final answer
    x = 60,364.96

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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.