Home / 158,537.80-218,783.96-90,563.77

Finding the Fourth Proportional to 158,537.80, 218,783.96 and 90,563.77

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Solution

The fourth proportional to 158,537.80, 218,783.96 and 90,563.77 is: 124,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,537.80 : 218,783.96 = 90,563.77 : x
  2. Step 2: Convert to fraction form
    158,537.80/218,783.96 = 90,563.77/x
  3. Step 3: Cross multiply
    158,537.80x = 218,783.96 × 90,563.77
  4. Step 4: Simplify right side
    158,537.80x = 19,813,900,233.13
  5. Step 5: Solve for x
    x = 19,813,900,233.13/158,537.80
  6. Step 6: Final answer
    x = 124,979.03

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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.