Home / 131,365.14-181,284.10-74,776.50

Finding the Fourth Proportional to 131,365.14, 181,284.10 and 74,776.50

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Solution

The fourth proportional to 131,365.14, 181,284.10 and 74,776.50 is: 103,191.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,365.14 : 181,284.10 = 74,776.50 : x
  2. Step 2: Convert to fraction form
    131,365.14/181,284.10 = 74,776.50/x
  3. Step 3: Cross multiply
    131,365.14x = 181,284.10 × 74,776.50
  4. Step 4: Simplify right side
    131,365.14x = 13,555,790,503.65
  5. Step 5: Solve for x
    x = 13,555,790,503.65/131,365.14
  6. Step 6: Final answer
    x = 103,191.69

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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.