Home / 156,107.70-233,928.27-85,890.42

Finding the Fourth Proportional to 156,107.70, 233,928.27 and 85,890.42

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Solution

The fourth proportional to 156,107.70, 233,928.27 and 85,890.42 is: 128,707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,107.70 : 233,928.27 = 85,890.42 : x
  2. Step 2: Convert to fraction form
    156,107.70/233,928.27 = 85,890.42/x
  3. Step 3: Cross multiply
    156,107.70x = 233,928.27 × 85,890.42
  4. Step 4: Simplify right side
    156,107.70x = 20,092,197,360.17
  5. Step 5: Solve for x
    x = 20,092,197,360.17/156,107.70
  6. Step 6: Final answer
    x = 128,707.28

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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.