Home / 134,869.68-202,428.80-68,357

Finding the Fourth Proportional to 134,869.68, 202,428.80 and 68,357

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Solution

The fourth proportional to 134,869.68, 202,428.80 and 68,357 is: 102,598.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,869.68 : 202,428.80 = 68,357 : x
  2. Step 2: Convert to fraction form
    134,869.68/202,428.80 = 68,357/x
  3. Step 3: Cross multiply
    134,869.68x = 202,428.80 × 68,357
  4. Step 4: Simplify right side
    134,869.68x = 13,837,425,481.60
  5. Step 5: Solve for x
    x = 13,837,425,481.60/134,869.68
  6. Step 6: Final answer
    x = 102,598.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.