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Finding the Fourth Proportional to 143,376.40, 215,064.60 and 96,374.80

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Solution

The fourth proportional to 143,376.40, 215,064.60 and 96,374.80 is: 144,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,376.40 : 215,064.60 = 96,374.80 : x
  2. Step 2: Convert to fraction form
    143,376.40/215,064.60 = 96,374.80/x
  3. Step 3: Cross multiply
    143,376.40x = 215,064.60 × 96,374.80
  4. Step 4: Simplify right side
    143,376.40x = 20,726,807,812.08
  5. Step 5: Solve for x
    x = 20,726,807,812.08/143,376.40
  6. Step 6: Final answer
    x = 144,562.20

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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.