Home / 117,532.46-161,826.04-103,720.53

Finding the Fourth Proportional to 117,532.46, 161,826.04 and 103,720.53

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Solution

The fourth proportional to 117,532.46, 161,826.04 and 103,720.53 is: 142,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,532.46 : 161,826.04 = 103,720.53 : x
  2. Step 2: Convert to fraction form
    117,532.46/161,826.04 = 103,720.53/x
  3. Step 3: Cross multiply
    117,532.46x = 161,826.04 × 103,720.53
  4. Step 4: Simplify right side
    117,532.46x = 16,784,681,861.84
  5. Step 5: Solve for x
    x = 16,784,681,861.84/117,532.46
  6. Step 6: Final answer
    x = 142,808.91

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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.