Home / 104,165.90-143,749.17-56,419.25

Finding the Fourth Proportional to 104,165.90, 143,749.17 and 56,419.25

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Solution

The fourth proportional to 104,165.90, 143,749.17 and 56,419.25 is: 77,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,165.90 : 143,749.17 = 56,419.25 : x
  2. Step 2: Convert to fraction form
    104,165.90/143,749.17 = 56,419.25/x
  3. Step 3: Cross multiply
    104,165.90x = 143,749.17 × 56,419.25
  4. Step 4: Simplify right side
    104,165.90x = 8,110,220,077.43
  5. Step 5: Solve for x
    x = 8,110,220,077.43/104,165.90
  6. Step 6: Final answer
    x = 77,858.69

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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.