Home / 126,015.93-173,900.15-72,299.77

Finding the Fourth Proportional to 126,015.93, 173,900.15 and 72,299.77

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Solution

The fourth proportional to 126,015.93, 173,900.15 and 72,299.77 is: 99,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,015.93 : 173,900.15 = 72,299.77 : x
  2. Step 2: Convert to fraction form
    126,015.93/173,900.15 = 72,299.77/x
  3. Step 3: Cross multiply
    126,015.93x = 173,900.15 × 72,299.77
  4. Step 4: Simplify right side
    126,015.93x = 12,572,940,322.84
  5. Step 5: Solve for x
    x = 12,572,940,322.84/126,015.93
  6. Step 6: Final answer
    x = 99,772.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.