Home / 126,296.15-189,343.64-72,927.54

Finding the Fourth Proportional to 126,296.15, 189,343.64 and 72,927.54

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Solution

The fourth proportional to 126,296.15, 189,343.64 and 72,927.54 is: 109,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,296.15 : 189,343.64 = 72,927.54 : x
  2. Step 2: Convert to fraction form
    126,296.15/189,343.64 = 72,927.54/x
  3. Step 3: Cross multiply
    126,296.15x = 189,343.64 × 72,927.54
  4. Step 4: Simplify right side
    126,296.15x = 13,808,366,062.16
  5. Step 5: Solve for x
    x = 13,808,366,062.16/126,296.15
  6. Step 6: Final answer
    x = 109,333.23

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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.