Home / 112,284.80-154,963.92-83,941.28

Finding the Fourth Proportional to 112,284.80, 154,963.92 and 83,941.28

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Solution

The fourth proportional to 112,284.80, 154,963.92 and 83,941.28 is: 115,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,284.80 : 154,963.92 = 83,941.28 : x
  2. Step 2: Convert to fraction form
    112,284.80/154,963.92 = 83,941.28/x
  3. Step 3: Cross multiply
    112,284.80x = 154,963.92 × 83,941.28
  4. Step 4: Simplify right side
    112,284.80x = 13,007,869,798.62
  5. Step 5: Solve for x
    x = 13,007,869,798.62/112,284.80
  6. Step 6: Final answer
    x = 115,847.11

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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.