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Finding the Fourth Proportional to 133,113.60, 199,411.20 and 73,843.20

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Solution

The fourth proportional to 133,113.60, 199,411.20 and 73,843.20 is: 110,621.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,113.60 : 199,411.20 = 73,843.20 : x
  2. Step 2: Convert to fraction form
    133,113.60/199,411.20 = 73,843.20/x
  3. Step 3: Cross multiply
    133,113.60x = 199,411.20 × 73,843.20
  4. Step 4: Simplify right side
    133,113.60x = 14,725,161,123.84
  5. Step 5: Solve for x
    x = 14,725,161,123.84/133,113.60
  6. Step 6: Final answer
    x = 110,621.01

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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.