Home / 134,808.06-186,034.59-74,382.47

Finding the Fourth Proportional to 134,808.06, 186,034.59 and 74,382.47

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Solution

The fourth proportional to 134,808.06, 186,034.59 and 74,382.47 is: 102,647.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,808.06 : 186,034.59 = 74,382.47 : x
  2. Step 2: Convert to fraction form
    134,808.06/186,034.59 = 74,382.47/x
  3. Step 3: Cross multiply
    134,808.06x = 186,034.59 × 74,382.47
  4. Step 4: Simplify right side
    134,808.06x = 13,837,711,379.46
  5. Step 5: Solve for x
    x = 13,837,711,379.46/134,808.06
  6. Step 6: Final answer
    x = 102,647.51

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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.