Home / 104,166.78-143,750.37-56,420.13

Finding the Fourth Proportional to 104,166.78, 143,750.37 and 56,420.13

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Solution

The fourth proportional to 104,166.78, 143,750.37 and 56,420.13 is: 77,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,166.78 : 143,750.37 = 56,420.13 : x
  2. Step 2: Convert to fraction form
    104,166.78/143,750.37 = 56,420.13/x
  3. Step 3: Cross multiply
    104,166.78x = 143,750.37 × 56,420.13
  4. Step 4: Simplify right side
    104,166.78x = 8,110,414,562.95
  5. Step 5: Solve for x
    x = 8,110,414,562.95/104,166.78
  6. Step 6: Final answer
    x = 77,859.90

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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.