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Finding the Fourth Proportional to 100,064.73, 149,948.54 and 55,630.35

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Solution

The fourth proportional to 100,064.73, 149,948.54 and 55,630.35 is: 83,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,064.73 : 149,948.54 = 55,630.35 : x
  2. Step 2: Convert to fraction form
    100,064.73/149,948.54 = 55,630.35/x
  3. Step 3: Cross multiply
    100,064.73x = 149,948.54 × 55,630.35
  4. Step 4: Simplify right side
    100,064.73x = 8,341,688,734.29
  5. Step 5: Solve for x
    x = 8,341,688,734.29/100,064.73
  6. Step 6: Final answer
    x = 83,362.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.