Home / 140,118.60-193,163.36-86,367.81

Finding the Fourth Proportional to 140,118.60, 193,163.36 and 86,367.81

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Solution

The fourth proportional to 140,118.60, 193,163.36 and 86,367.81 is: 119,064.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,118.60 : 193,163.36 = 86,367.81 : x
  2. Step 2: Convert to fraction form
    140,118.60/193,163.36 = 86,367.81/x
  3. Step 3: Cross multiply
    140,118.60x = 193,163.36 × 86,367.81
  4. Step 4: Simplify right side
    140,118.60x = 16,683,095,943.60
  5. Step 5: Solve for x
    x = 16,683,095,943.60/140,118.60
  6. Step 6: Final answer
    x = 119,064.11

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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.