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Finding the Fourth Proportional to 117,206.55, 161,745.44 and 63,491.40

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Solution

The fourth proportional to 117,206.55, 161,745.44 and 63,491.40 is: 87,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,206.55 : 161,745.44 = 63,491.40 : x
  2. Step 2: Convert to fraction form
    117,206.55/161,745.44 = 63,491.40/x
  3. Step 3: Cross multiply
    117,206.55x = 161,745.44 × 63,491.40
  4. Step 4: Simplify right side
    117,206.55x = 10,269,444,111.76
  5. Step 5: Solve for x
    x = 10,269,444,111.76/117,206.55
  6. Step 6: Final answer
    x = 87,618.35

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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.