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Finding the Fourth Proportional to 127,957.20, 191,935.80 and 101,230.80

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Solution

The fourth proportional to 127,957.20, 191,935.80 and 101,230.80 is: 151,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,957.20 : 191,935.80 = 101,230.80 : x
  2. Step 2: Convert to fraction form
    127,957.20/191,935.80 = 101,230.80/x
  3. Step 3: Cross multiply
    127,957.20x = 191,935.80 × 101,230.80
  4. Step 4: Simplify right side
    127,957.20x = 19,429,814,582.64
  5. Step 5: Solve for x
    x = 19,429,814,582.64/127,957.20
  6. Step 6: Final answer
    x = 151,846.20

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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.