Home / 104,190.48-143,781.56-56,442.64

Finding the Fourth Proportional to 104,190.48, 143,781.56 and 56,442.64

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Solution

The fourth proportional to 104,190.48, 143,781.56 and 56,442.64 is: 77,890.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,190.48 : 143,781.56 = 56,442.64 : x
  2. Step 2: Convert to fraction form
    104,190.48/143,781.56 = 56,442.64/x
  3. Step 3: Cross multiply
    104,190.48x = 143,781.56 × 56,442.64
  4. Step 4: Simplify right side
    104,190.48x = 8,115,410,829.72
  5. Step 5: Solve for x
    x = 8,115,410,829.72/104,190.48
  6. Step 6: Final answer
    x = 77,890.14

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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.