Home / 135,018.42-186,326.73-74,590.50

Finding the Fourth Proportional to 135,018.42, 186,326.73 and 74,590.50

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Solution

The fourth proportional to 135,018.42, 186,326.73 and 74,590.50 is: 102,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,018.42 : 186,326.73 = 74,590.50 : x
  2. Step 2: Convert to fraction form
    135,018.42/186,326.73 = 74,590.50/x
  3. Step 3: Cross multiply
    135,018.42x = 186,326.73 × 74,590.50
  4. Step 4: Simplify right side
    135,018.42x = 13,898,203,954.07
  5. Step 5: Solve for x
    x = 13,898,203,954.07/135,018.42
  6. Step 6: Final answer
    x = 102,935.61

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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.