Home / 135,296.02-186,717.86-74,869.21

Finding the Fourth Proportional to 135,296.02, 186,717.86 and 74,869.21

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Solution

The fourth proportional to 135,296.02, 186,717.86 and 74,869.21 is: 103,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,296.02 : 186,717.86 = 74,869.21 : x
  2. Step 2: Convert to fraction form
    135,296.02/186,717.86 = 74,869.21/x
  3. Step 3: Cross multiply
    135,296.02x = 186,717.86 × 74,869.21
  4. Step 4: Simplify right side
    135,296.02x = 13,979,418,810.90
  5. Step 5: Solve for x
    x = 13,979,418,810.90/135,296.02
  6. Step 6: Final answer
    x = 103,324.69

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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.