Home / 134,807.31-186,033.56-74,381.72

Finding the Fourth Proportional to 134,807.31, 186,033.56 and 74,381.72

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Solution

The fourth proportional to 134,807.31, 186,033.56 and 74,381.72 is: 102,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,807.31 : 186,033.56 = 74,381.72 : x
  2. Step 2: Convert to fraction form
    134,807.31/186,033.56 = 74,381.72/x
  3. Step 3: Cross multiply
    134,807.31x = 186,033.56 × 74,381.72
  4. Step 4: Simplify right side
    134,807.31x = 13,837,494,868.45
  5. Step 5: Solve for x
    x = 13,837,494,868.45/134,807.31
  6. Step 6: Final answer
    x = 102,646.47

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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.