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Finding the Fourth Proportional to 158,053.95, 218,048.29 and 103,619.19

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Solution

The fourth proportional to 158,053.95, 218,048.29 and 103,619.19 is: 142,951.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,053.95 : 218,048.29 = 103,619.19 : x
  2. Step 2: Convert to fraction form
    158,053.95/218,048.29 = 103,619.19/x
  3. Step 3: Cross multiply
    158,053.95x = 218,048.29 × 103,619.19
  4. Step 4: Simplify right side
    158,053.95x = 22,593,987,105.65
  5. Step 5: Solve for x
    x = 22,593,987,105.65/158,053.95
  6. Step 6: Final answer
    x = 142,951.11

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