Home / 140,509.28-193,904.33-76,845.71

Finding the Fourth Proportional to 140,509.28, 193,904.33 and 76,845.71

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Solution

The fourth proportional to 140,509.28, 193,904.33 and 76,845.71 is: 106,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,509.28 : 193,904.33 = 76,845.71 : x
  2. Step 2: Convert to fraction form
    140,509.28/193,904.33 = 76,845.71/x
  3. Step 3: Cross multiply
    140,509.28x = 193,904.33 × 76,845.71
  4. Step 4: Simplify right side
    140,509.28x = 14,900,714,557.17
  5. Step 5: Solve for x
    x = 14,900,714,557.17/140,509.28
  6. Step 6: Final answer
    x = 106,047.91

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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.