Home / 107,270.40-148,187.57-85,732.57

Finding the Fourth Proportional to 107,270.40, 148,187.57 and 85,732.57

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Solution

The fourth proportional to 107,270.40, 148,187.57 and 85,732.57 is: 118,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,270.40 : 148,187.57 = 85,732.57 : x
  2. Step 2: Convert to fraction form
    107,270.40/148,187.57 = 85,732.57/x
  3. Step 3: Cross multiply
    107,270.40x = 148,187.57 × 85,732.57
  4. Step 4: Simplify right side
    107,270.40x = 12,704,501,218.15
  5. Step 5: Solve for x
    x = 12,704,501,218.15/107,270.40
  6. Step 6: Final answer
    x = 118,434.36

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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.