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Finding the Fourth Proportional to 117,029.55, 161,500.79 and 63,314.54

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Solution

The fourth proportional to 117,029.55, 161,500.79 and 63,314.54 is: 87,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,029.55 : 161,500.79 = 63,314.54 : x
  2. Step 2: Convert to fraction form
    117,029.55/161,500.79 = 63,314.54/x
  3. Step 3: Cross multiply
    117,029.55x = 161,500.79 × 63,314.54
  4. Step 4: Simplify right side
    117,029.55x = 10,225,347,579.27
  5. Step 5: Solve for x
    x = 10,225,347,579.27/117,029.55
  6. Step 6: Final answer
    x = 87,374.07

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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.