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Finding the Fourth Proportional to 154,899.70, 232,152.70 and 84,697

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Solution

The fourth proportional to 154,899.70, 232,152.70 and 84,697 is: 126,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,899.70 : 232,152.70 = 84,697 : x
  2. Step 2: Convert to fraction form
    154,899.70/232,152.70 = 84,697/x
  3. Step 3: Cross multiply
    154,899.70x = 232,152.70 × 84,697
  4. Step 4: Simplify right side
    154,899.70x = 19,662,637,231.90
  5. Step 5: Solve for x
    x = 19,662,637,231.90/154,899.70
  6. Step 6: Final answer
    x = 126,937.87

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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.