Home / 156,012.06-215,295.30-88,029.54

Finding the Fourth Proportional to 156,012.06, 215,295.30 and 88,029.54

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Solution

The fourth proportional to 156,012.06, 215,295.30 and 88,029.54 is: 121,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,012.06 : 215,295.30 = 88,029.54 : x
  2. Step 2: Convert to fraction form
    156,012.06/215,295.30 = 88,029.54/x
  3. Step 3: Cross multiply
    156,012.06x = 215,295.30 × 88,029.54
  4. Step 4: Simplify right side
    156,012.06x = 18,952,346,223.16
  5. Step 5: Solve for x
    x = 18,952,346,223.16/156,012.06
  6. Step 6: Final answer
    x = 121,480.01

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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.