Home / 104,190.11-143,782.21-56,443.65

Finding the Fourth Proportional to 104,190.11, 143,782.21 and 56,443.65

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Solution

The fourth proportional to 104,190.11, 143,782.21 and 56,443.65 is: 77,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,190.11 : 143,782.21 = 56,443.65 : x
  2. Step 2: Convert to fraction form
    104,190.11/143,782.21 = 56,443.65/x
  3. Step 3: Cross multiply
    104,190.11x = 143,782.21 × 56,443.65
  4. Step 4: Simplify right side
    104,190.11x = 8,115,592,737.47
  5. Step 5: Solve for x
    x = 8,115,592,737.47/104,190.11
  6. Step 6: Final answer
    x = 77,892.16

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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.