Home / 104,190.30-143,781.48-56,440.80

Finding the Fourth Proportional to 104,190.30, 143,781.48 and 56,440.80

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Solution

The fourth proportional to 104,190.30, 143,781.48 and 56,440.80 is: 77,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,190.30 : 143,781.48 = 56,440.80 : x
  2. Step 2: Convert to fraction form
    104,190.30/143,781.48 = 56,440.80/x
  3. Step 3: Cross multiply
    104,190.30x = 143,781.48 × 56,440.80
  4. Step 4: Simplify right side
    104,190.30x = 8,115,141,756.38
  5. Step 5: Solve for x
    x = 8,115,141,756.38/104,190.30
  6. Step 6: Final answer
    x = 77,887.69

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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.