Home / 117,641.83-162,351.95-66,664.45

Finding the Fourth Proportional to 117,641.83, 162,351.95 and 66,664.45

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Solution

The fourth proportional to 117,641.83, 162,351.95 and 66,664.45 is: 92,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,641.83 : 162,351.95 = 66,664.45 : x
  2. Step 2: Convert to fraction form
    117,641.83/162,351.95 = 66,664.45/x
  3. Step 3: Cross multiply
    117,641.83x = 162,351.95 × 66,664.45
  4. Step 4: Simplify right side
    117,641.83x = 10,823,103,453.18
  5. Step 5: Solve for x
    x = 10,823,103,453.18/117,641.83
  6. Step 6: Final answer
    x = 92,000.47

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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.