Home / 104,308.38-143,944.78-56,561.66

Finding the Fourth Proportional to 104,308.38, 143,944.78 and 56,561.66

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Solution

The fourth proportional to 104,308.38, 143,944.78 and 56,561.66 is: 78,054.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,308.38 : 143,944.78 = 56,561.66 : x
  2. Step 2: Convert to fraction form
    104,308.38/143,944.78 = 56,561.66/x
  3. Step 3: Cross multiply
    104,308.38x = 143,944.78 × 56,561.66
  4. Step 4: Simplify right side
    104,308.38x = 8,141,755,705.13
  5. Step 5: Solve for x
    x = 8,141,755,705.13/104,308.38
  6. Step 6: Final answer
    x = 78,054.67

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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.