Home / 134,807.47-186,033.10-74,378.65

Finding the Fourth Proportional to 134,807.47, 186,033.10 and 74,378.65

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Solution

The fourth proportional to 134,807.47, 186,033.10 and 74,378.65 is: 102,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,807.47 : 186,033.10 = 74,378.65 : x
  2. Step 2: Convert to fraction form
    134,807.47/186,033.10 = 74,378.65/x
  3. Step 3: Cross multiply
    134,807.47x = 186,033.10 × 74,378.65
  4. Step 4: Simplify right side
    134,807.47x = 13,836,890,833.32
  5. Step 5: Solve for x
    x = 13,836,890,833.32/134,807.47
  6. Step 6: Final answer
    x = 102,641.87

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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.