Home / 117,499.95-162,170.64-66,515.58

Finding the Fourth Proportional to 117,499.95, 162,170.64 and 66,515.58

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Solution

The fourth proportional to 117,499.95, 162,170.64 and 66,515.58 is: 91,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,499.95 : 162,170.64 = 66,515.58 : x
  2. Step 2: Convert to fraction form
    117,499.95/162,170.64 = 66,515.58/x
  3. Step 3: Cross multiply
    117,499.95x = 162,170.64 × 66,515.58
  4. Step 4: Simplify right side
    117,499.95x = 10,786,874,178.57
  5. Step 5: Solve for x
    x = 10,786,874,178.57/117,499.95
  6. Step 6: Final answer
    x = 91,803.22

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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.