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Finding the Fourth Proportional to 111,473.79, 153,869.00 and 75,227.91

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Solution

The fourth proportional to 111,473.79, 153,869.00 and 75,227.91 is: 103,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,473.79 : 153,869.00 = 75,227.91 : x
  2. Step 2: Convert to fraction form
    111,473.79/153,869.00 = 75,227.91/x
  3. Step 3: Cross multiply
    111,473.79x = 153,869.00 × 75,227.91
  4. Step 4: Simplify right side
    111,473.79x = 11,575,242,907.65
  5. Step 5: Solve for x
    x = 11,575,242,907.65/111,473.79
  6. Step 6: Final answer
    x = 103,838.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.