Home / 140,545.71-193,953.02-76,883.49

Finding the Fourth Proportional to 140,545.71, 193,953.02 and 76,883.49

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Solution

The fourth proportional to 140,545.71, 193,953.02 and 76,883.49 is: 106,099.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,545.71 : 193,953.02 = 76,883.49 : x
  2. Step 2: Convert to fraction form
    140,545.71/193,953.02 = 76,883.49/x
  3. Step 3: Cross multiply
    140,545.71x = 193,953.02 × 76,883.49
  4. Step 4: Simplify right side
    140,545.71x = 14,911,784,689.22
  5. Step 5: Solve for x
    x = 14,911,784,689.22/140,545.71
  6. Step 6: Final answer
    x = 106,099.18

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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.