Home / 144,976.80-217,465.20-100,690.05

Finding the Fourth Proportional to 144,976.80, 217,465.20 and 100,690.05

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Solution

The fourth proportional to 144,976.80, 217,465.20 and 100,690.05 is: 151,035.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,976.80 : 217,465.20 = 100,690.05 : x
  2. Step 2: Convert to fraction form
    144,976.80/217,465.20 = 100,690.05/x
  3. Step 3: Cross multiply
    144,976.80x = 217,465.20 × 100,690.05
  4. Step 4: Simplify right side
    144,976.80x = 21,896,581,861.26
  5. Step 5: Solve for x
    x = 21,896,581,861.26/144,976.80
  6. Step 6: Final answer
    x = 151,035.08

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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.