Home / 117,704.02-162,428.10-66,721.46

Finding the Fourth Proportional to 117,704.02, 162,428.10 and 66,721.46

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Solution

The fourth proportional to 117,704.02, 162,428.10 and 66,721.46 is: 92,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,704.02 : 162,428.10 = 66,721.46 : x
  2. Step 2: Convert to fraction form
    117,704.02/162,428.10 = 66,721.46/x
  3. Step 3: Cross multiply
    117,704.02x = 162,428.10 × 66,721.46
  4. Step 4: Simplify right side
    117,704.02x = 10,837,439,977.03
  5. Step 5: Solve for x
    x = 10,837,439,977.03/117,704.02
  6. Step 6: Final answer
    x = 92,073.66

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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.