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Finding the Fourth Proportional to 107,358.30, 161,037.45 and 54,870.30

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Solution

The fourth proportional to 107,358.30, 161,037.45 and 54,870.30 is: 82,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,358.30 : 161,037.45 = 54,870.30 : x
  2. Step 2: Convert to fraction form
    107,358.30/161,037.45 = 54,870.30/x
  3. Step 3: Cross multiply
    107,358.30x = 161,037.45 × 54,870.30
  4. Step 4: Simplify right side
    107,358.30x = 8,836,173,192.74
  5. Step 5: Solve for x
    x = 8,836,173,192.74/107,358.30
  6. Step 6: Final answer
    x = 82,305.45

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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.