Home / 119,156.38-164,344.74-80,945.38

Finding the Fourth Proportional to 119,156.38, 164,344.74 and 80,945.38

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Solution

The fourth proportional to 119,156.38, 164,344.74 and 80,945.38 is: 111,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,156.38 : 164,344.74 = 80,945.38 : x
  2. Step 2: Convert to fraction form
    119,156.38/164,344.74 = 80,945.38/x
  3. Step 3: Cross multiply
    119,156.38x = 164,344.74 × 80,945.38
  4. Step 4: Simplify right side
    119,156.38x = 13,302,947,430.30
  5. Step 5: Solve for x
    x = 13,302,947,430.30/119,156.38
  6. Step 6: Final answer
    x = 111,642.76

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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.