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Finding the Fourth Proportional to 117,477.09, 162,118.47 and 63,762.09

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Solution

The fourth proportional to 117,477.09, 162,118.47 and 63,762.09 is: 87,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,477.09 : 162,118.47 = 63,762.09 : x
  2. Step 2: Convert to fraction form
    117,477.09/162,118.47 = 63,762.09/x
  3. Step 3: Cross multiply
    117,477.09x = 162,118.47 × 63,762.09
  4. Step 4: Simplify right side
    117,477.09x = 10,337,012,474.80
  5. Step 5: Solve for x
    x = 10,337,012,474.80/117,477.09
  6. Step 6: Final answer
    x = 87,991.73

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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.