Home / 156,269.75-215,653.29-84,649.77

Finding the Fourth Proportional to 156,269.75, 215,653.29 and 84,649.77

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Solution

The fourth proportional to 156,269.75, 215,653.29 and 84,649.77 is: 116,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,269.75 : 215,653.29 = 84,649.77 : x
  2. Step 2: Convert to fraction form
    156,269.75/215,653.29 = 84,649.77/x
  3. Step 3: Cross multiply
    156,269.75x = 215,653.29 × 84,649.77
  4. Step 4: Simplify right side
    156,269.75x = 18,255,001,398.24
  5. Step 5: Solve for x
    x = 18,255,001,398.24/156,269.75
  6. Step 6: Final answer
    x = 116,817.25

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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.