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Finding the Fourth Proportional to 117,895.98, 162,648.36 and 72,560.28

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Solution

The fourth proportional to 117,895.98, 162,648.36 and 72,560.28 is: 100,103.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,895.98 : 162,648.36 = 72,560.28 : x
  2. Step 2: Convert to fraction form
    117,895.98/162,648.36 = 72,560.28/x
  3. Step 3: Cross multiply
    117,895.98x = 162,648.36 × 72,560.28
  4. Step 4: Simplify right side
    117,895.98x = 11,801,810,543.14
  5. Step 5: Solve for x
    x = 11,801,810,543.14/117,895.98
  6. Step 6: Final answer
    x = 100,103.59

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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.