Home / 156,112.20-233,822.70-128,464.20

Finding the Fourth Proportional to 156,112.20, 233,822.70 and 128,464.20

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Solution

The fourth proportional to 156,112.20, 233,822.70 and 128,464.20 is: 192,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,112.20 : 233,822.70 = 128,464.20 : x
  2. Step 2: Convert to fraction form
    156,112.20/233,822.70 = 128,464.20/x
  3. Step 3: Cross multiply
    156,112.20x = 233,822.70 × 128,464.20
  4. Step 4: Simplify right side
    156,112.20x = 30,037,846,097.34
  5. Step 5: Solve for x
    x = 30,037,846,097.34/156,112.20
  6. Step 6: Final answer
    x = 192,411.91

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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.