Home / 188,724.30-260,434.76-102,679.62

Finding the Fourth Proportional to 188,724.30, 260,434.76 and 102,679.62

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Solution

The fourth proportional to 188,724.30, 260,434.76 and 102,679.62 is: 141,695.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,724.30 : 260,434.76 = 102,679.62 : x
  2. Step 2: Convert to fraction form
    188,724.30/260,434.76 = 102,679.62/x
  3. Step 3: Cross multiply
    188,724.30x = 260,434.76 × 102,679.62
  4. Step 4: Simplify right side
    188,724.30x = 26,741,341,678.19
  5. Step 5: Solve for x
    x = 26,741,341,678.19/188,724.30
  6. Step 6: Final answer
    x = 141,695.28

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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.