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Finding the Fourth Proportional to 173,152.20, 259,728.30 and 99,219.40

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Solution

The fourth proportional to 173,152.20, 259,728.30 and 99,219.40 is: 148,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,152.20 : 259,728.30 = 99,219.40 : x
  2. Step 2: Convert to fraction form
    173,152.20/259,728.30 = 99,219.40/x
  3. Step 3: Cross multiply
    173,152.20x = 259,728.30 × 99,219.40
  4. Step 4: Simplify right side
    173,152.20x = 25,770,086,089.02
  5. Step 5: Solve for x
    x = 25,770,086,089.02/173,152.20
  6. Step 6: Final answer
    x = 148,829.10

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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.