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Finding the Fourth Proportional to 125,900.52, 188,825.58 and 80,788.32

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Solution

The fourth proportional to 125,900.52, 188,825.58 and 80,788.32 is: 121,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,900.52 : 188,825.58 = 80,788.32 : x
  2. Step 2: Convert to fraction form
    125,900.52/188,825.58 = 80,788.32/x
  3. Step 3: Cross multiply
    125,900.52x = 188,825.58 × 80,788.32
  4. Step 4: Simplify right side
    125,900.52x = 15,254,901,381.23
  5. Step 5: Solve for x
    x = 15,254,901,381.23/125,900.52
  6. Step 6: Final answer
    x = 121,166.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.