Home / 112,254.80-154,922.52-83,911.28

Finding the Fourth Proportional to 112,254.80, 154,922.52 and 83,911.28

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Solution

The fourth proportional to 112,254.80, 154,922.52 and 83,911.28 is: 115,805.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,254.80 : 154,922.52 = 83,911.28 : x
  2. Step 2: Convert to fraction form
    112,254.80/154,922.52 = 83,911.28/x
  3. Step 3: Cross multiply
    112,254.80x = 154,922.52 × 83,911.28
  4. Step 4: Simplify right side
    112,254.80x = 12,999,746,954.03
  5. Step 5: Solve for x
    x = 12,999,746,954.03/112,254.80
  6. Step 6: Final answer
    x = 115,805.71

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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.