Home / 156,506.72-215,907.54-92,821.28

Finding the Fourth Proportional to 156,506.72, 215,907.54 and 92,821.28

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Solution

The fourth proportional to 156,506.72, 215,907.54 and 92,821.28 is: 128,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,506.72 : 215,907.54 = 92,821.28 : x
  2. Step 2: Convert to fraction form
    156,506.72/215,907.54 = 92,821.28/x
  3. Step 3: Cross multiply
    156,506.72x = 215,907.54 × 92,821.28
  4. Step 4: Simplify right side
    156,506.72x = 20,040,814,224.45
  5. Step 5: Solve for x
    x = 20,040,814,224.45/156,506.72
  6. Step 6: Final answer
    x = 128,050.82

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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.