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Finding the Fourth Proportional to 103,360.70, 142,653.25 and 63,097.80

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Solution

The fourth proportional to 103,360.70, 142,653.25 and 63,097.80 is: 87,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,360.70 : 142,653.25 = 63,097.80 : x
  2. Step 2: Convert to fraction form
    103,360.70/142,653.25 = 63,097.80/x
  3. Step 3: Cross multiply
    103,360.70x = 142,653.25 × 63,097.80
  4. Step 4: Simplify right side
    103,360.70x = 9,001,106,237.85
  5. Step 5: Solve for x
    x = 9,001,106,237.85/103,360.70
  6. Step 6: Final answer
    x = 87,084.42

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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.