Home / 137,104.13-188,811.33-128,560.46

Finding the Fourth Proportional to 137,104.13, 188,811.33 and 128,560.46

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Solution

The fourth proportional to 137,104.13, 188,811.33 and 128,560.46 is: 177,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,104.13 : 188,811.33 = 128,560.46 : x
  2. Step 2: Convert to fraction form
    137,104.13/188,811.33 = 128,560.46/x
  3. Step 3: Cross multiply
    137,104.13x = 188,811.33 × 128,560.46
  4. Step 4: Simplify right side
    137,104.13x = 24,273,671,438.01
  5. Step 5: Solve for x
    x = 24,273,671,438.01/137,104.13
  6. Step 6: Final answer
    x = 177,045.52

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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.