Home / 118,932.18-164,101.59-80,721.24

Finding the Fourth Proportional to 118,932.18, 164,101.59 and 80,721.24

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Solution

The fourth proportional to 118,932.18, 164,101.59 and 80,721.24 is: 111,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,932.18 : 164,101.59 = 80,721.24 : x
  2. Step 2: Convert to fraction form
    118,932.18/164,101.59 = 80,721.24/x
  3. Step 3: Cross multiply
    118,932.18x = 164,101.59 × 80,721.24
  4. Step 4: Simplify right side
    118,932.18x = 13,246,483,830.77
  5. Step 5: Solve for x
    x = 13,246,483,830.77/118,932.18
  6. Step 6: Final answer
    x = 111,378.47

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1.5x scale

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.