Home / 104,360.18-143,961.89-74,157.71

Finding the Fourth Proportional to 104,360.18, 143,961.89 and 74,157.71

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Solution

The fourth proportional to 104,360.18, 143,961.89 and 74,157.71 is: 102,298.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,360.18 : 143,961.89 = 74,157.71 : x
  2. Step 2: Convert to fraction form
    104,360.18/143,961.89 = 74,157.71/x
  3. Step 3: Cross multiply
    104,360.18x = 143,961.89 × 74,157.71
  4. Step 4: Simplify right side
    104,360.18x = 10,675,882,999.07
  5. Step 5: Solve for x
    x = 10,675,882,999.07/104,360.18
  6. Step 6: Final answer
    x = 102,298.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.