Home / 121,037.80-181,557.98-36,811.68

Finding the Fourth Proportional to 121,037.80, 181,557.98 and 36,811.68

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Solution

The fourth proportional to 121,037.80, 181,557.98 and 36,811.68 is: 55,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,037.80 : 181,557.98 = 36,811.68 : x
  2. Step 2: Convert to fraction form
    121,037.80/181,557.98 = 36,811.68/x
  3. Step 3: Cross multiply
    121,037.80x = 181,557.98 × 36,811.68
  4. Step 4: Simplify right side
    121,037.80x = 6,683,454,261.21
  5. Step 5: Solve for x
    x = 6,683,454,261.21/121,037.80
  6. Step 6: Final answer
    x = 55,217.91

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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.