Home / 117,403.40-162,016.82-63,688.52

Finding the Fourth Proportional to 117,403.40, 162,016.82 and 63,688.52

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Solution

The fourth proportional to 117,403.40, 162,016.82 and 63,688.52 is: 87,890.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,403.40 : 162,016.82 = 63,688.52 : x
  2. Step 2: Convert to fraction form
    117,403.40/162,016.82 = 63,688.52/x
  3. Step 3: Cross multiply
    117,403.40x = 162,016.82 × 63,688.52
  4. Step 4: Simplify right side
    117,403.40x = 10,318,611,480.91
  5. Step 5: Solve for x
    x = 10,318,611,480.91/117,403.40
  6. Step 6: Final answer
    x = 87,890.23

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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.