Home / 125,629.60-188,422.80-46,703.20

Finding the Fourth Proportional to 125,629.60, 188,422.80 and 46,703.20

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Solution

The fourth proportional to 125,629.60, 188,422.80 and 46,703.20 is: 70,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,629.60 : 188,422.80 = 46,703.20 : x
  2. Step 2: Convert to fraction form
    125,629.60/188,422.80 = 46,703.20/x
  3. Step 3: Cross multiply
    125,629.60x = 188,422.80 × 46,703.20
  4. Step 4: Simplify right side
    125,629.60x = 8,799,947,712.96
  5. Step 5: Solve for x
    x = 8,799,947,712.96/125,629.60
  6. Step 6: Final answer
    x = 70,046.77

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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.