Home / 124,756.80-172,162.32-68,166.96

Finding the Fourth Proportional to 124,756.80, 172,162.32 and 68,166.96

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Solution

The fourth proportional to 124,756.80, 172,162.32 and 68,166.96 is: 94,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,756.80 : 172,162.32 = 68,166.96 : x
  2. Step 2: Convert to fraction form
    124,756.80/172,162.32 = 68,166.96/x
  3. Step 3: Cross multiply
    124,756.80x = 172,162.32 × 68,166.96
  4. Step 4: Simplify right side
    124,756.80x = 11,735,781,980.95
  5. Step 5: Solve for x
    x = 11,735,781,980.95/124,756.80
  6. Step 6: Final answer
    x = 94,069.28

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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.