Home / 230,525.41-318,126.46-128,557.32

Finding the Fourth Proportional to 230,525.41, 318,126.46 and 128,557.32

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Solution

The fourth proportional to 230,525.41, 318,126.46 and 128,557.32 is: 177,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,525.41 : 318,126.46 = 128,557.32 : x
  2. Step 2: Convert to fraction form
    230,525.41/318,126.46 = 128,557.32/x
  3. Step 3: Cross multiply
    230,525.41x = 318,126.46 × 128,557.32
  4. Step 4: Simplify right side
    230,525.41x = 40,897,483,524.30
  5. Step 5: Solve for x
    x = 40,897,483,524.30/230,525.41
  6. Step 6: Final answer
    x = 177,409.87

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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.