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Finding the Fourth Proportional to 96,997.95, 144,640.31 and 85,200.00

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Solution

The fourth proportional to 96,997.95, 144,640.31 and 85,200.00 is: 127,047.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,997.95 : 144,640.31 = 85,200.00 : x
  2. Step 2: Convert to fraction form
    96,997.95/144,640.31 = 85,200.00/x
  3. Step 3: Cross multiply
    96,997.95x = 144,640.31 × 85,200.00
  4. Step 4: Simplify right side
    96,997.95x = 12,323,353,443.60
  5. Step 5: Solve for x
    x = 12,323,353,443.60/96,997.95
  6. Step 6: Final answer
    x = 127,047.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.