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Finding the Fourth Proportional to 107,114.88, 147,816 and 62,400

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Solution

The fourth proportional to 107,114.88, 147,816 and 62,400 is: 86,110.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,114.88 : 147,816 = 62,400 : x
  2. Step 2: Convert to fraction form
    107,114.88/147,816 = 62,400/x
  3. Step 3: Cross multiply
    107,114.88x = 147,816 × 62,400
  4. Step 4: Simplify right side
    107,114.88x = 9,223,718,400
  5. Step 5: Solve for x
    x = 9,223,718,400/107,114.88
  6. Step 6: Final answer
    x = 86,110.52

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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.