Home / 156,086.20-233,783.70-128,438.20

Finding the Fourth Proportional to 156,086.20, 233,783.70 and 128,438.20

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Solution

The fourth proportional to 156,086.20, 233,783.70 and 128,438.20 is: 192,372.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,086.20 : 233,783.70 = 128,438.20 : x
  2. Step 2: Convert to fraction form
    156,086.20/233,783.70 = 128,438.20/x
  3. Step 3: Cross multiply
    156,086.20x = 233,783.70 × 128,438.20
  4. Step 4: Simplify right side
    156,086.20x = 30,026,757,617.34
  5. Step 5: Solve for x
    x = 30,026,757,617.34/156,086.20
  6. Step 6: Final answer
    x = 192,372.92

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1.5x scale

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.