Home / 129,341.60-178,338.74-88,525.42

Finding the Fourth Proportional to 129,341.60, 178,338.74 and 88,525.42

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Solution

The fourth proportional to 129,341.60, 178,338.74 and 88,525.42 is: 122,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,341.60 : 178,338.74 = 88,525.42 : x
  2. Step 2: Convert to fraction form
    129,341.60/178,338.74 = 88,525.42/x
  3. Step 3: Cross multiply
    129,341.60x = 178,338.74 × 88,525.42
  4. Step 4: Simplify right side
    129,341.60x = 15,787,511,860.77
  5. Step 5: Solve for x
    x = 15,787,511,860.77/129,341.60
  6. Step 6: Final answer
    x = 122,060.59

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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.