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Finding the Fourth Proportional to 173,144.80, 259,717.20 and 120,000.70

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Solution

The fourth proportional to 173,144.80, 259,717.20 and 120,000.70 is: 180,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,144.80 : 259,717.20 = 120,000.70 : x
  2. Step 2: Convert to fraction form
    173,144.80/259,717.20 = 120,000.70/x
  3. Step 3: Cross multiply
    173,144.80x = 259,717.20 × 120,000.70
  4. Step 4: Simplify right side
    173,144.80x = 31,166,245,802.04
  5. Step 5: Solve for x
    x = 31,166,245,802.04/173,144.80
  6. Step 6: Final answer
    x = 180,001.05

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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.