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Finding the Fourth Proportional to 145,555.01, 218,258.66 and 66,601.58

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Solution

The fourth proportional to 145,555.01, 218,258.66 and 66,601.58 is: 99,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,555.01 : 218,258.66 = 66,601.58 : x
  2. Step 2: Convert to fraction form
    145,555.01/218,258.66 = 66,601.58/x
  3. Step 3: Cross multiply
    145,555.01x = 218,258.66 × 66,601.58
  4. Step 4: Simplify right side
    145,555.01x = 14,536,370,180.38
  5. Step 5: Solve for x
    x = 14,536,370,180.38/145,555.01
  6. Step 6: Final answer
    x = 99,868.57

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