Home / 137,703.24-189,923.34-99,605.70

Finding the Fourth Proportional to 137,703.24, 189,923.34 and 99,605.70

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Solution

The fourth proportional to 137,703.24, 189,923.34 and 99,605.70 is: 137,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,703.24 : 189,923.34 = 99,605.70 : x
  2. Step 2: Convert to fraction form
    137,703.24/189,923.34 = 99,605.70/x
  3. Step 3: Cross multiply
    137,703.24x = 189,923.34 × 99,605.70
  4. Step 4: Simplify right side
    137,703.24x = 18,917,447,227.04
  5. Step 5: Solve for x
    x = 18,917,447,227.04/137,703.24
  6. Step 6: Final answer
    x = 137,378.37

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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.