Home / 126,501.58-189,358.71-79,656.04

Finding the Fourth Proportional to 126,501.58, 189,358.71 and 79,656.04

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Solution

The fourth proportional to 126,501.58, 189,358.71 and 79,656.04 is: 119,236.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,501.58 : 189,358.71 = 79,656.04 : x
  2. Step 2: Convert to fraction form
    126,501.58/189,358.71 = 79,656.04/x
  3. Step 3: Cross multiply
    126,501.58x = 189,358.71 × 79,656.04
  4. Step 4: Simplify right side
    126,501.58x = 15,083,564,978.11
  5. Step 5: Solve for x
    x = 15,083,564,978.11/126,501.58
  6. Step 6: Final answer
    x = 119,236.18

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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.