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Finding the Fourth Proportional to 117,774.77, 162,514.46 and 79,617.32

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Solution

The fourth proportional to 117,774.77, 162,514.46 and 79,617.32 is: 109,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,774.77 : 162,514.46 = 79,617.32 : x
  2. Step 2: Convert to fraction form
    117,774.77/162,514.46 = 79,617.32/x
  3. Step 3: Cross multiply
    117,774.77x = 162,514.46 × 79,617.32
  4. Step 4: Simplify right side
    117,774.77x = 12,938,965,368.36
  5. Step 5: Solve for x
    x = 12,938,965,368.36/117,774.77
  6. Step 6: Final answer
    x = 109,861.95

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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.