Home / 156,117.75-215,442.09-84,497.76

Finding the Fourth Proportional to 156,117.75, 215,442.09 and 84,497.76

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Solution

The fourth proportional to 156,117.75, 215,442.09 and 84,497.76 is: 116,606.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,117.75 : 215,442.09 = 84,497.76 : x
  2. Step 2: Convert to fraction form
    156,117.75/215,442.09 = 84,497.76/x
  3. Step 3: Cross multiply
    156,117.75x = 215,442.09 × 84,497.76
  4. Step 4: Simplify right side
    156,117.75x = 18,204,374,014.72
  5. Step 5: Solve for x
    x = 18,204,374,014.72/156,117.75
  6. Step 6: Final answer
    x = 116,606.69

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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.