Home / 126,435.51-189,652.56-51,555.37

Finding the Fourth Proportional to 126,435.51, 189,652.56 and 51,555.37

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Solution

The fourth proportional to 126,435.51, 189,652.56 and 51,555.37 is: 77,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,435.51 : 189,652.56 = 51,555.37 : x
  2. Step 2: Convert to fraction form
    126,435.51/189,652.56 = 51,555.37/x
  3. Step 3: Cross multiply
    126,435.51x = 189,652.56 × 51,555.37
  4. Step 4: Simplify right side
    126,435.51x = 9,777,607,902.25
  5. Step 5: Solve for x
    x = 9,777,607,902.25/126,435.51
  6. Step 6: Final answer
    x = 77,332.77

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1.5x scale

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.