Home / 134,903.13-186,161.43-74,472.47

Finding the Fourth Proportional to 134,903.13, 186,161.43 and 74,472.47

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Solution

The fourth proportional to 134,903.13, 186,161.43 and 74,472.47 is: 102,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,903.13 : 186,161.43 = 74,472.47 : x
  2. Step 2: Convert to fraction form
    134,903.13/186,161.43 = 74,472.47/x
  3. Step 3: Cross multiply
    134,903.13x = 186,161.43 × 74,472.47
  4. Step 4: Simplify right side
    134,903.13x = 13,863,901,138.47
  5. Step 5: Solve for x
    x = 13,863,901,138.47/134,903.13
  6. Step 6: Final answer
    x = 102,769.31

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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.