Home / 109,238.12-150,762.96-61,500.80

Finding the Fourth Proportional to 109,238.12, 150,762.96 and 61,500.80

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Solution

The fourth proportional to 109,238.12, 150,762.96 and 61,500.80 is: 84,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,238.12 : 150,762.96 = 61,500.80 : x
  2. Step 2: Convert to fraction form
    109,238.12/150,762.96 = 61,500.80/x
  3. Step 3: Cross multiply
    109,238.12x = 150,762.96 × 61,500.80
  4. Step 4: Simplify right side
    109,238.12x = 9,272,042,650.37
  5. Step 5: Solve for x
    x = 9,272,042,650.37/109,238.12
  6. Step 6: Final answer
    x = 84,879.19

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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.