Home / 140,574.64-193,991.28-76,911.52

Finding the Fourth Proportional to 140,574.64, 193,991.28 and 76,911.52

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Solution

The fourth proportional to 140,574.64, 193,991.28 and 76,911.52 is: 106,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,574.64 : 193,991.28 = 76,911.52 : x
  2. Step 2: Convert to fraction form
    140,574.64/193,991.28 = 76,911.52/x
  3. Step 3: Cross multiply
    140,574.64x = 193,991.28 × 76,911.52
  4. Step 4: Simplify right side
    140,574.64x = 14,920,164,211.55
  5. Step 5: Solve for x
    x = 14,920,164,211.55/140,574.64
  6. Step 6: Final answer
    x = 106,136.95

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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.