Home / 104,156.20-143,733.85-56,409.13

Finding the Fourth Proportional to 104,156.20, 143,733.85 and 56,409.13

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Solution

The fourth proportional to 104,156.20, 143,733.85 and 56,409.13 is: 77,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,156.20 : 143,733.85 = 56,409.13 : x
  2. Step 2: Convert to fraction form
    104,156.20/143,733.85 = 56,409.13/x
  3. Step 3: Cross multiply
    104,156.20x = 143,733.85 × 56,409.13
  4. Step 4: Simplify right side
    104,156.20x = 8,107,901,430.05
  5. Step 5: Solve for x
    x = 8,107,901,430.05/104,156.20
  6. Step 6: Final answer
    x = 77,843.68

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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.