Home / 156,236.79-215,620.04-88,266.23

Finding the Fourth Proportional to 156,236.79, 215,620.04 and 88,266.23

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Solution

The fourth proportional to 156,236.79, 215,620.04 and 88,266.23 is: 121,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,236.79 : 215,620.04 = 88,266.23 : x
  2. Step 2: Convert to fraction form
    156,236.79/215,620.04 = 88,266.23/x
  3. Step 3: Cross multiply
    156,236.79x = 215,620.04 × 88,266.23
  4. Step 4: Simplify right side
    156,236.79x = 19,031,966,523.82
  5. Step 5: Solve for x
    x = 19,031,966,523.82/156,236.79
  6. Step 6: Final answer
    x = 121,814.88

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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.