Home / 144,127.77-198,914.66-83,686.38

Finding the Fourth Proportional to 144,127.77, 198,914.66 and 83,686.38

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Solution

The fourth proportional to 144,127.77, 198,914.66 and 83,686.38 is: 115,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,127.77 : 198,914.66 = 83,686.38 : x
  2. Step 2: Convert to fraction form
    144,127.77/198,914.66 = 83,686.38/x
  3. Step 3: Cross multiply
    144,127.77x = 198,914.66 × 83,686.38
  4. Step 4: Simplify right side
    144,127.77x = 16,646,446,829.76
  5. Step 5: Solve for x
    x = 16,646,446,829.76/144,127.77
  6. Step 6: Final answer
    x = 115,497.85

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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.