Home / 104,155.20-143,732.48-56,408.13

Finding the Fourth Proportional to 104,155.20, 143,732.48 and 56,408.13

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Solution

The fourth proportional to 104,155.20, 143,732.48 and 56,408.13 is: 77,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,155.20 : 143,732.48 = 56,408.13 : x
  2. Step 2: Convert to fraction form
    104,155.20/143,732.48 = 56,408.13/x
  3. Step 3: Cross multiply
    104,155.20x = 143,732.48 × 56,408.13
  4. Step 4: Simplify right side
    104,155.20x = 8,107,680,135.02
  5. Step 5: Solve for x
    x = 8,107,680,135.02/104,155.20
  6. Step 6: Final answer
    x = 77,842.30

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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.