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Finding the Fourth Proportional to 127,596, 191,329.65 and 74,305.20

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Solution

The fourth proportional to 127,596, 191,329.65 and 74,305.20 is: 111,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,596 : 191,329.65 = 74,305.20 : x
  2. Step 2: Convert to fraction form
    127,596/191,329.65 = 74,305.20/x
  3. Step 3: Cross multiply
    127,596x = 191,329.65 × 74,305.20
  4. Step 4: Simplify right side
    127,596x = 14,216,787,909.18
  5. Step 5: Solve for x
    x = 14,216,787,909.18/127,596
  6. Step 6: Final answer
    x = 111,420.33

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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.