Home / 125,346.48-187,959.24-72,769.20

Finding the Fourth Proportional to 125,346.48, 187,959.24 and 72,769.20

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Solution

The fourth proportional to 125,346.48, 187,959.24 and 72,769.20 is: 109,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,346.48 : 187,959.24 = 72,769.20 : x
  2. Step 2: Convert to fraction form
    125,346.48/187,959.24 = 72,769.20/x
  3. Step 3: Cross multiply
    125,346.48x = 187,959.24 × 72,769.20
  4. Step 4: Simplify right side
    125,346.48x = 13,677,643,527.41
  5. Step 5: Solve for x
    x = 13,677,643,527.41/125,346.48
  6. Step 6: Final answer
    x = 109,118.69

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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.