Home / 156,321.24-215,723.51-84,701.22

Finding the Fourth Proportional to 156,321.24, 215,723.51 and 84,701.22

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Solution

The fourth proportional to 156,321.24, 215,723.51 and 84,701.22 is: 116,887.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,321.24 : 215,723.51 = 84,701.22 : x
  2. Step 2: Convert to fraction form
    156,321.24/215,723.51 = 84,701.22/x
  3. Step 3: Cross multiply
    156,321.24x = 215,723.51 × 84,701.22
  4. Step 4: Simplify right side
    156,321.24x = 18,272,044,056.18
  5. Step 5: Solve for x
    x = 18,272,044,056.18/156,321.24
  6. Step 6: Final answer
    x = 116,887.79

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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.