Home / 134,808.31-186,034.93-74,382.72

Finding the Fourth Proportional to 134,808.31, 186,034.93 and 74,382.72

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Solution

The fourth proportional to 134,808.31, 186,034.93 and 74,382.72 is: 102,647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,808.31 : 186,034.93 = 74,382.72 : x
  2. Step 2: Convert to fraction form
    134,808.31/186,034.93 = 74,382.72/x
  3. Step 3: Cross multiply
    134,808.31x = 186,034.93 × 74,382.72
  4. Step 4: Simplify right side
    134,808.31x = 13,837,784,108.41
  5. Step 5: Solve for x
    x = 13,837,784,108.41/134,808.31
  6. Step 6: Final answer
    x = 102,647.86

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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.