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Finding the Fourth Proportional to 107,485, 148,285.62 and 62,154.28

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Solution

The fourth proportional to 107,485, 148,285.62 and 62,154.28 is: 85,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,485 : 148,285.62 = 62,154.28 : x
  2. Step 2: Convert to fraction form
    107,485/148,285.62 = 62,154.28/x
  3. Step 3: Cross multiply
    107,485x = 148,285.62 × 62,154.28
  4. Step 4: Simplify right side
    107,485x = 9,216,585,945.45
  5. Step 5: Solve for x
    x = 9,216,585,945.45/107,485
  6. Step 6: Final answer
    x = 85,747.65

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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.