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Finding the Fourth Proportional to 161,105.64, 241,737.80 and 72,423.60

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Solution

The fourth proportional to 161,105.64, 241,737.80 and 72,423.60 is: 108,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,105.64 : 241,737.80 = 72,423.60 : x
  2. Step 2: Convert to fraction form
    161,105.64/241,737.80 = 72,423.60/x
  3. Step 3: Cross multiply
    161,105.64x = 241,737.80 × 72,423.60
  4. Step 4: Simplify right side
    161,105.64x = 17,507,521,732.08
  5. Step 5: Solve for x
    x = 17,507,521,732.08/161,105.64
  6. Step 6: Final answer
    x = 108,671.07

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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.