Home / 156,001.30-215,086.57-130,197.10

Finding the Fourth Proportional to 156,001.30, 215,086.57 and 130,197.10

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Solution

The fourth proportional to 156,001.30, 215,086.57 and 130,197.10 is: 179,509.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,001.30 : 215,086.57 = 130,197.10 : x
  2. Step 2: Convert to fraction form
    156,001.30/215,086.57 = 130,197.10/x
  3. Step 3: Cross multiply
    156,001.30x = 215,086.57 × 130,197.10
  4. Step 4: Simplify right side
    156,001.30x = 28,003,647,330.45
  5. Step 5: Solve for x
    x = 28,003,647,330.45/156,001.30
  6. Step 6: Final answer
    x = 179,509.06

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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.