Home / 135,918.71-187,566.71-74,665.92

Finding the Fourth Proportional to 135,918.71, 187,566.71 and 74,665.92

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Solution

The fourth proportional to 135,918.71, 187,566.71 and 74,665.92 is: 103,038.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,918.71 : 187,566.71 = 74,665.92 : x
  2. Step 2: Convert to fraction form
    135,918.71/187,566.71 = 74,665.92/x
  3. Step 3: Cross multiply
    135,918.71x = 187,566.71 × 74,665.92
  4. Step 4: Simplify right side
    135,918.71x = 14,004,840,590.19
  5. Step 5: Solve for x
    x = 14,004,840,590.19/135,918.71
  6. Step 6: Final answer
    x = 103,038.36

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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.