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Finding the Fourth Proportional to 104,189.48, 143,794.50 and 61,764.20

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Solution

The fourth proportional to 104,189.48, 143,794.50 and 61,764.20 is: 85,242.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,189.48 : 143,794.50 = 61,764.20 : x
  2. Step 2: Convert to fraction form
    104,189.48/143,794.50 = 61,764.20/x
  3. Step 3: Cross multiply
    104,189.48x = 143,794.50 × 61,764.20
  4. Step 4: Simplify right side
    104,189.48x = 8,881,352,256.90
  5. Step 5: Solve for x
    x = 8,881,352,256.90/104,189.48
  6. Step 6: Final answer
    x = 85,242.31

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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.