Home / 124,827.76-172,261.20-68,238.64

Finding the Fourth Proportional to 124,827.76, 172,261.20 and 68,238.64

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Solution

The fourth proportional to 124,827.76, 172,261.20 and 68,238.64 is: 94,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,827.76 : 172,261.20 = 68,238.64 : x
  2. Step 2: Convert to fraction form
    124,827.76/172,261.20 = 68,238.64/x
  3. Step 3: Cross multiply
    124,827.76x = 172,261.20 × 68,238.64
  4. Step 4: Simplify right side
    124,827.76x = 11,754,870,012.77
  5. Step 5: Solve for x
    x = 11,754,870,012.77/124,827.76
  6. Step 6: Final answer
    x = 94,168.72

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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.