Home / 156,276.16-215,660.89-84,656.46

Finding the Fourth Proportional to 156,276.16, 215,660.89 and 84,656.46

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Solution

The fourth proportional to 156,276.16, 215,660.89 and 84,656.46 is: 116,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,276.16 : 215,660.89 = 84,656.46 : x
  2. Step 2: Convert to fraction form
    156,276.16/215,660.89 = 84,656.46/x
  3. Step 3: Cross multiply
    156,276.16x = 215,660.89 × 84,656.46
  4. Step 4: Simplify right side
    156,276.16x = 18,257,088,422.40
  5. Step 5: Solve for x
    x = 18,257,088,422.40/156,276.16
  6. Step 6: Final answer
    x = 116,825.81

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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.