Home / 163,720.67-245,675.16-68,943.38

Finding the Fourth Proportional to 163,720.67, 245,675.16 and 68,943.38

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Solution

The fourth proportional to 163,720.67, 245,675.16 and 68,943.38 is: 103,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,720.67 : 245,675.16 = 68,943.38 : x
  2. Step 2: Convert to fraction form
    163,720.67/245,675.16 = 68,943.38/x
  3. Step 3: Cross multiply
    163,720.67x = 245,675.16 × 68,943.38
  4. Step 4: Simplify right side
    163,720.67x = 16,937,674,684.07
  5. Step 5: Solve for x
    x = 16,937,674,684.07/163,720.67
  6. Step 6: Final answer
    x = 103,454.71

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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.