Home / 126,505.77-189,758.67-51,661.16

Finding the Fourth Proportional to 126,505.77, 189,758.67 and 51,661.16

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Solution

The fourth proportional to 126,505.77, 189,758.67 and 51,661.16 is: 77,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,505.77 : 189,758.67 = 51,661.16 : x
  2. Step 2: Convert to fraction form
    126,505.77/189,758.67 = 51,661.16/x
  3. Step 3: Cross multiply
    126,505.77x = 189,758.67 × 51,661.16
  4. Step 4: Simplify right side
    126,505.77x = 9,803,152,063.46
  5. Step 5: Solve for x
    x = 9,803,152,063.46/126,505.77
  6. Step 6: Final answer
    x = 77,491.74

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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.