Home / 188,012.50-259,457.25-103,129.76

Finding the Fourth Proportional to 188,012.50, 259,457.25 and 103,129.76

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Solution

The fourth proportional to 188,012.50, 259,457.25 and 103,129.76 is: 142,319.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,012.50 : 259,457.25 = 103,129.76 : x
  2. Step 2: Convert to fraction form
    188,012.50/259,457.25 = 103,129.76/x
  3. Step 3: Cross multiply
    188,012.50x = 259,457.25 × 103,129.76
  4. Step 4: Simplify right side
    188,012.50x = 26,757,763,922.76
  5. Step 5: Solve for x
    x = 26,757,763,922.76/188,012.50
  6. Step 6: Final answer
    x = 142,319.07

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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.