Home / 156,963.90-216,604.26-85,341.45

Finding the Fourth Proportional to 156,963.90, 216,604.26 and 85,341.45

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Solution

The fourth proportional to 156,963.90, 216,604.26 and 85,341.45 is: 117,767.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.90 : 216,604.26 = 85,341.45 : x
  2. Step 2: Convert to fraction form
    156,963.90/216,604.26 = 85,341.45/x
  3. Step 3: Cross multiply
    156,963.90x = 216,604.26 × 85,341.45
  4. Step 4: Simplify right side
    156,963.90x = 18,485,321,624.58
  5. Step 5: Solve for x
    x = 18,485,321,624.58/156,963.90
  6. Step 6: Final answer
    x = 117,767.98

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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.