Home / 119,145.40-164,329.54-80,934.41

Finding the Fourth Proportional to 119,145.40, 164,329.54 and 80,934.41

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Solution

The fourth proportional to 119,145.40, 164,329.54 and 80,934.41 is: 111,627.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,145.40 : 164,329.54 = 80,934.41 : x
  2. Step 2: Convert to fraction form
    119,145.40/164,329.54 = 80,934.41/x
  3. Step 3: Cross multiply
    119,145.40x = 164,329.54 × 80,934.41
  4. Step 4: Simplify right side
    119,145.40x = 13,299,913,139.15
  5. Step 5: Solve for x
    x = 13,299,913,139.15/119,145.40
  6. Step 6: Final answer
    x = 111,627.59

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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.