Home / 156,679.67-216,216.72-85,058.25

Finding the Fourth Proportional to 156,679.67, 216,216.72 and 85,058.25

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Solution

The fourth proportional to 156,679.67, 216,216.72 and 85,058.25 is: 117,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,679.67 : 216,216.72 = 85,058.25 : x
  2. Step 2: Convert to fraction form
    156,679.67/216,216.72 = 85,058.25/x
  3. Step 3: Cross multiply
    156,679.67x = 216,216.72 × 85,058.25
  4. Step 4: Simplify right side
    156,679.67x = 18,391,015,823.94
  5. Step 5: Solve for x
    x = 18,391,015,823.94/156,679.67
  6. Step 6: Final answer
    x = 117,379.72

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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.