Home / 118,901.11-164,084.34-65,186.50

Finding the Fourth Proportional to 118,901.11, 164,084.34 and 65,186.50

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Solution

The fourth proportional to 118,901.11, 164,084.34 and 65,186.50 is: 89,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,901.11 : 164,084.34 = 65,186.50 : x
  2. Step 2: Convert to fraction form
    118,901.11/164,084.34 = 65,186.50/x
  3. Step 3: Cross multiply
    118,901.11x = 164,084.34 × 65,186.50
  4. Step 4: Simplify right side
    118,901.11x = 10,696,083,829.41
  5. Step 5: Solve for x
    x = 10,696,083,829.41/118,901.11
  6. Step 6: Final answer
    x = 89,957.81

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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.