Home / 126,652.48-189,043.36-111,710.72

Finding the Fourth Proportional to 126,652.48, 189,043.36 and 111,710.72

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Solution

The fourth proportional to 126,652.48, 189,043.36 and 111,710.72 is: 166,741.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,652.48 : 189,043.36 = 111,710.72 : x
  2. Step 2: Convert to fraction form
    126,652.48/189,043.36 = 111,710.72/x
  3. Step 3: Cross multiply
    126,652.48x = 189,043.36 × 111,710.72
  4. Step 4: Simplify right side
    126,652.48x = 21,118,169,856.82
  5. Step 5: Solve for x
    x = 21,118,169,856.82/126,652.48
  6. Step 6: Final answer
    x = 166,741.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.