Home / 124,782.39-172,199.32-68,193.77

Finding the Fourth Proportional to 124,782.39, 172,199.32 and 68,193.77

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Solution

The fourth proportional to 124,782.39, 172,199.32 and 68,193.77 is: 94,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,782.39 : 172,199.32 = 68,193.77 : x
  2. Step 2: Convert to fraction form
    124,782.39/172,199.32 = 68,193.77/x
  3. Step 3: Cross multiply
    124,782.39x = 172,199.32 × 68,193.77
  4. Step 4: Simplify right side
    124,782.39x = 11,742,919,790.76
  5. Step 5: Solve for x
    x = 11,742,919,790.76/124,782.39
  6. Step 6: Final answer
    x = 94,107.19

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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.