Home / 125,507.40-188,134.74-55,374.36

Finding the Fourth Proportional to 125,507.40, 188,134.74 and 55,374.36

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Solution

The fourth proportional to 125,507.40, 188,134.74 and 55,374.36 is: 83,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,507.40 : 188,134.74 = 55,374.36 : x
  2. Step 2: Convert to fraction form
    125,507.40/188,134.74 = 55,374.36/x
  3. Step 3: Cross multiply
    125,507.40x = 188,134.74 × 55,374.36
  4. Step 4: Simplify right side
    125,507.40x = 10,417,840,821.27
  5. Step 5: Solve for x
    x = 10,417,840,821.27/125,507.40
  6. Step 6: Final answer
    x = 83,005.79

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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.