Home / 104,187.64-143,778.76-56,442.19

Finding the Fourth Proportional to 104,187.64, 143,778.76 and 56,442.19

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Solution

The fourth proportional to 104,187.64, 143,778.76 and 56,442.19 is: 77,890.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,187.64 : 143,778.76 = 56,442.19 : x
  2. Step 2: Convert to fraction form
    104,187.64/143,778.76 = 56,442.19/x
  3. Step 3: Cross multiply
    104,187.64x = 143,778.76 × 56,442.19
  4. Step 4: Simplify right side
    104,187.64x = 8,115,188,089.88
  5. Step 5: Solve for x
    x = 8,115,188,089.88/104,187.64
  6. Step 6: Final answer
    x = 77,890.12

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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.