Home / 156,276.06-215,660.10-84,657.48

Finding the Fourth Proportional to 156,276.06, 215,660.10 and 84,657.48

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Solution

The fourth proportional to 156,276.06, 215,660.10 and 84,657.48 is: 116,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,276.06 : 215,660.10 = 84,657.48 : x
  2. Step 2: Convert to fraction form
    156,276.06/215,660.10 = 84,657.48/x
  3. Step 3: Cross multiply
    156,276.06x = 215,660.10 × 84,657.48
  4. Step 4: Simplify right side
    156,276.06x = 18,257,240,602.55
  5. Step 5: Solve for x
    x = 18,257,240,602.55/156,276.06
  6. Step 6: Final answer
    x = 116,826.86

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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.