Home / 100,828.87-151,218.19-30,707.17

Finding the Fourth Proportional to 100,828.87, 151,218.19 and 30,707.17

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Solution

The fourth proportional to 100,828.87, 151,218.19 and 30,707.17 is: 46,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,828.87 : 151,218.19 = 30,707.17 : x
  2. Step 2: Convert to fraction form
    100,828.87/151,218.19 = 30,707.17/x
  3. Step 3: Cross multiply
    100,828.87x = 151,218.19 × 30,707.17
  4. Step 4: Simplify right side
    100,828.87x = 4,643,482,327.76
  5. Step 5: Solve for x
    x = 4,643,482,327.76/100,828.87
  6. Step 6: Final answer
    x = 46,053.10

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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.