Home / 105,096.60-145,036.39-57,353.03

Finding the Fourth Proportional to 105,096.60, 145,036.39 and 57,353.03

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Solution

The fourth proportional to 105,096.60, 145,036.39 and 57,353.03 is: 79,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,096.60 : 145,036.39 = 57,353.03 : x
  2. Step 2: Convert to fraction form
    105,096.60/145,036.39 = 57,353.03/x
  3. Step 3: Cross multiply
    105,096.60x = 145,036.39 × 57,353.03
  4. Step 4: Simplify right side
    105,096.60x = 8,318,275,414.81
  5. Step 5: Solve for x
    x = 8,318,275,414.81/105,096.60
  6. Step 6: Final answer
    x = 79,148.85

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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.