Home / 118,903.04-164,086.16-65,186.90

Finding the Fourth Proportional to 118,903.04, 164,086.16 and 65,186.90

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Solution

The fourth proportional to 118,903.04, 164,086.16 and 65,186.90 is: 89,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,903.04 : 164,086.16 = 65,186.90 : x
  2. Step 2: Convert to fraction form
    118,903.04/164,086.16 = 65,186.90/x
  3. Step 3: Cross multiply
    118,903.04x = 164,086.16 × 65,186.90
  4. Step 4: Simplify right side
    118,903.04x = 10,696,267,777.37
  5. Step 5: Solve for x
    x = 10,696,267,777.37/118,903.04
  6. Step 6: Final answer
    x = 89,957.90

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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.