Home / 126,298.65-189,347.39-72,930.04

Finding the Fourth Proportional to 126,298.65, 189,347.39 and 72,930.04

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Solution

The fourth proportional to 126,298.65, 189,347.39 and 72,930.04 is: 109,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,298.65 : 189,347.39 = 72,930.04 : x
  2. Step 2: Convert to fraction form
    126,298.65/189,347.39 = 72,930.04/x
  3. Step 3: Cross multiply
    126,298.65x = 189,347.39 × 72,930.04
  4. Step 4: Simplify right side
    126,298.65x = 13,809,112,726.60
  5. Step 5: Solve for x
    x = 13,809,112,726.60/126,298.65
  6. Step 6: Final answer
    x = 109,336.98

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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.