Home / 143,705.98-198,299.23-88,506.51

Finding the Fourth Proportional to 143,705.98, 198,299.23 and 88,506.51

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Solution

The fourth proportional to 143,705.98, 198,299.23 and 88,506.51 is: 122,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,705.98 : 198,299.23 = 88,506.51 : x
  2. Step 2: Convert to fraction form
    143,705.98/198,299.23 = 88,506.51/x
  3. Step 3: Cross multiply
    143,705.98x = 198,299.23 × 88,506.51
  4. Step 4: Simplify right side
    143,705.98x = 17,550,772,782.99
  5. Step 5: Solve for x
    x = 17,550,772,782.99/143,705.98
  6. Step 6: Final answer
    x = 122,129.73

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1.5x scale

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.