Home / 156,701.40-215,948.34-153,822.12

Finding the Fourth Proportional to 156,701.40, 215,948.34 and 153,822.12

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Solution

The fourth proportional to 156,701.40, 215,948.34 and 153,822.12 is: 211,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,701.40 : 215,948.34 = 153,822.12 : x
  2. Step 2: Convert to fraction form
    156,701.40/215,948.34 = 153,822.12/x
  3. Step 3: Cross multiply
    156,701.40x = 215,948.34 × 153,822.12
  4. Step 4: Simplify right side
    156,701.40x = 33,217,631,469.28
  5. Step 5: Solve for x
    x = 33,217,631,469.28/156,701.40
  6. Step 6: Final answer
    x = 211,980.44

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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.