Home / 99,849.08-137,786.58-54,518.31

Finding the Fourth Proportional to 99,849.08, 137,786.58 and 54,518.31

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Solution

The fourth proportional to 99,849.08, 137,786.58 and 54,518.31 is: 75,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,849.08 : 137,786.58 = 54,518.31 : x
  2. Step 2: Convert to fraction form
    99,849.08/137,786.58 = 54,518.31/x
  3. Step 3: Cross multiply
    99,849.08x = 137,786.58 × 54,518.31
  4. Step 4: Simplify right side
    99,849.08x = 7,511,891,482.28
  5. Step 5: Solve for x
    x = 7,511,891,482.28/99,849.08
  6. Step 6: Final answer
    x = 75,232.46

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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.