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Finding the Fourth Proportional to 180,695.70, 271,045.71 and 85,935.03

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Solution

The fourth proportional to 180,695.70, 271,045.71 and 85,935.03 is: 128,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,695.70 : 271,045.71 = 85,935.03 : x
  2. Step 2: Convert to fraction form
    180,695.70/271,045.71 = 85,935.03/x
  3. Step 3: Cross multiply
    180,695.70x = 271,045.71 × 85,935.03
  4. Step 4: Simplify right side
    180,695.70x = 23,292,321,220.22
  5. Step 5: Solve for x
    x = 23,292,321,220.22/180,695.70
  6. Step 6: Final answer
    x = 128,903.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.