Home / 104,887.38-144,743.87-57,140.76

Finding the Fourth Proportional to 104,887.38, 144,743.87 and 57,140.76

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Solution

The fourth proportional to 104,887.38, 144,743.87 and 57,140.76 is: 78,853.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,887.38 : 144,743.87 = 57,140.76 : x
  2. Step 2: Convert to fraction form
    104,887.38/144,743.87 = 57,140.76/x
  3. Step 3: Cross multiply
    104,887.38x = 144,743.87 × 57,140.76
  4. Step 4: Simplify right side
    104,887.38x = 8,270,774,737.14
  5. Step 5: Solve for x
    x = 8,270,774,737.14/104,887.38
  6. Step 6: Final answer
    x = 78,853.86

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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.