Home / 163,722.67-245,678.16-68,945.38

Finding the Fourth Proportional to 163,722.67, 245,678.16 and 68,945.38

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Solution

The fourth proportional to 163,722.67, 245,678.16 and 68,945.38 is: 103,457.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,722.67 : 245,678.16 = 68,945.38 : x
  2. Step 2: Convert to fraction form
    163,722.67/245,678.16 = 68,945.38/x
  3. Step 3: Cross multiply
    163,722.67x = 245,678.16 × 68,945.38
  4. Step 4: Simplify right side
    163,722.67x = 16,938,374,098.90
  5. Step 5: Solve for x
    x = 16,938,374,098.90/163,722.67
  6. Step 6: Final answer
    x = 103,457.72

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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.