Home / 102,917.40-154,376.10-40,579.80

Finding the Fourth Proportional to 102,917.40, 154,376.10 and 40,579.80

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Solution

The fourth proportional to 102,917.40, 154,376.10 and 40,579.80 is: 60,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,917.40 : 154,376.10 = 40,579.80 : x
  2. Step 2: Convert to fraction form
    102,917.40/154,376.10 = 40,579.80/x
  3. Step 3: Cross multiply
    102,917.40x = 154,376.10 × 40,579.80
  4. Step 4: Simplify right side
    102,917.40x = 6,264,551,262.78
  5. Step 5: Solve for x
    x = 6,264,551,262.78/102,917.40
  6. Step 6: Final answer
    x = 60,869.70

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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.