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Finding the Fourth Proportional to 169,887.92, 254,902.08 and 85,603.04

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Solution

The fourth proportional to 169,887.92, 254,902.08 and 85,603.04 is: 128,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,887.92 : 254,902.08 = 85,603.04 : x
  2. Step 2: Convert to fraction form
    169,887.92/254,902.08 = 85,603.04/x
  3. Step 3: Cross multiply
    169,887.92x = 254,902.08 × 85,603.04
  4. Step 4: Simplify right side
    169,887.92x = 21,820,392,950.32
  5. Step 5: Solve for x
    x = 21,820,392,950.32/169,887.92
  6. Step 6: Final answer
    x = 128,439.93

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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.