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Finding the Fourth Proportional to 132,901.20, 199,390.20 and 39,409.20

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Solution

The fourth proportional to 132,901.20, 199,390.20 and 39,409.20 is: 59,125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,901.20 : 199,390.20 = 39,409.20 : x
  2. Step 2: Convert to fraction form
    132,901.20/199,390.20 = 39,409.20/x
  3. Step 3: Cross multiply
    132,901.20x = 199,390.20 × 39,409.20
  4. Step 4: Simplify right side
    132,901.20x = 7,857,808,269.84
  5. Step 5: Solve for x
    x = 7,857,808,269.84/132,901.20
  6. Step 6: Final answer
    x = 59,125.19

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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.