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Finding the Fourth Proportional to 106,647.33, 147,220.29 and 63,641.73

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Solution

The fourth proportional to 106,647.33, 147,220.29 and 63,641.73 is: 87,853.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,647.33 : 147,220.29 = 63,641.73 : x
  2. Step 2: Convert to fraction form
    106,647.33/147,220.29 = 63,641.73/x
  3. Step 3: Cross multiply
    106,647.33x = 147,220.29 × 63,641.73
  4. Step 4: Simplify right side
    106,647.33x = 9,369,353,946.70
  5. Step 5: Solve for x
    x = 9,369,353,946.70/106,647.33
  6. Step 6: Final answer
    x = 87,853.62

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1.5x scale

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.