Home / 230,557.08-318,168.15-128,582.67

Finding the Fourth Proportional to 230,557.08, 318,168.15 and 128,582.67

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Solution

The fourth proportional to 230,557.08, 318,168.15 and 128,582.67 is: 177,443.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,557.08 : 318,168.15 = 128,582.67 : x
  2. Step 2: Convert to fraction form
    230,557.08/318,168.15 = 128,582.67/x
  3. Step 3: Cross multiply
    230,557.08x = 318,168.15 × 128,582.67
  4. Step 4: Simplify right side
    230,557.08x = 40,910,910,235.96
  5. Step 5: Solve for x
    x = 40,910,910,235.96/230,557.08
  6. Step 6: Final answer
    x = 177,443.74

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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.