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Finding the Fourth Proportional to 117,961, 162,782.90 and 64,244.84

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Solution

The fourth proportional to 117,961, 162,782.90 and 64,244.84 is: 88,656.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961 : 162,782.90 = 64,244.84 : x
  2. Step 2: Convert to fraction form
    117,961/162,782.90 = 64,244.84/x
  3. Step 3: Cross multiply
    117,961x = 162,782.90 × 64,244.84
  4. Step 4: Simplify right side
    117,961x = 10,457,961,365.24
  5. Step 5: Solve for x
    x = 10,457,961,365.24/117,961
  6. Step 6: Final answer
    x = 88,656.09

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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.