Home / 125,864.40-188,796.60-69,877.20

Finding the Fourth Proportional to 125,864.40, 188,796.60 and 69,877.20

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Solution

The fourth proportional to 125,864.40, 188,796.60 and 69,877.20 is: 104,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,864.40 : 188,796.60 = 69,877.20 : x
  2. Step 2: Convert to fraction form
    125,864.40/188,796.60 = 69,877.20/x
  3. Step 3: Cross multiply
    125,864.40x = 188,796.60 × 69,877.20
  4. Step 4: Simplify right side
    125,864.40x = 13,192,577,777.52
  5. Step 5: Solve for x
    x = 13,192,577,777.52/125,864.40
  6. Step 6: Final answer
    x = 104,815.80

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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.