Home / 143,189.93-197,623.65-103,036.61

Finding the Fourth Proportional to 143,189.93, 197,623.65 and 103,036.61

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Solution

The fourth proportional to 143,189.93, 197,623.65 and 103,036.61 is: 142,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,189.93 : 197,623.65 = 103,036.61 : x
  2. Step 2: Convert to fraction form
    143,189.93/197,623.65 = 103,036.61/x
  3. Step 3: Cross multiply
    143,189.93x = 197,623.65 × 103,036.61
  4. Step 4: Simplify right side
    143,189.93x = 20,362,469,963.71
  5. Step 5: Solve for x
    x = 20,362,469,963.71/143,189.93
  6. Step 6: Final answer
    x = 142,206.02

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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.