Home / 125,376.36-188,231.28-72,823.56

Finding the Fourth Proportional to 125,376.36, 188,231.28 and 72,823.56

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Solution

The fourth proportional to 125,376.36, 188,231.28 and 72,823.56 is: 109,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,376.36 : 188,231.28 = 72,823.56 : x
  2. Step 2: Convert to fraction form
    125,376.36/188,231.28 = 72,823.56/x
  3. Step 3: Cross multiply
    125,376.36x = 188,231.28 × 72,823.56
  4. Step 4: Simplify right side
    125,376.36x = 13,707,671,912.96
  5. Step 5: Solve for x
    x = 13,707,671,912.96/125,376.36
  6. Step 6: Final answer
    x = 109,332.19

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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.