Home / 163,715.68-245,667.66-68,938.39

Finding the Fourth Proportional to 163,715.68, 245,667.66 and 68,938.39

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Solution

The fourth proportional to 163,715.68, 245,667.66 and 68,938.39 is: 103,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,715.68 : 245,667.66 = 68,938.39 : x
  2. Step 2: Convert to fraction form
    163,715.68/245,667.66 = 68,938.39/x
  3. Step 3: Cross multiply
    163,715.68x = 245,667.66 × 68,938.39
  4. Step 4: Simplify right side
    163,715.68x = 16,935,932,955.47
  5. Step 5: Solve for x
    x = 16,935,932,955.47/163,715.68
  6. Step 6: Final answer
    x = 103,447.23

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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.