Home / 143,550.72-215,425.44-83,678.40

Finding the Fourth Proportional to 143,550.72, 215,425.44 and 83,678.40

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Solution

The fourth proportional to 143,550.72, 215,425.44 and 83,678.40 is: 125,575.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,550.72 : 215,425.44 = 83,678.40 : x
  2. Step 2: Convert to fraction form
    143,550.72/215,425.44 = 83,678.40/x
  3. Step 3: Cross multiply
    143,550.72x = 215,425.44 × 83,678.40
  4. Step 4: Simplify right side
    143,550.72x = 18,026,456,138.50
  5. Step 5: Solve for x
    x = 18,026,456,138.50/143,550.72
  6. Step 6: Final answer
    x = 125,575.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.