Home / 135,098.42-186,430.02-74,665.94

Finding the Fourth Proportional to 135,098.42, 186,430.02 and 74,665.94

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Solution

The fourth proportional to 135,098.42, 186,430.02 and 74,665.94 is: 103,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,098.42 : 186,430.02 = 74,665.94 : x
  2. Step 2: Convert to fraction form
    135,098.42/186,430.02 = 74,665.94/x
  3. Step 3: Cross multiply
    135,098.42x = 186,430.02 × 74,665.94
  4. Step 4: Simplify right side
    135,098.42x = 13,919,972,687.52
  5. Step 5: Solve for x
    x = 13,919,972,687.52/135,098.42
  6. Step 6: Final answer
    x = 103,035.79

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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.