Home / 99,444.09-137,198.22-56,418.51

Finding the Fourth Proportional to 99,444.09, 137,198.22 and 56,418.51

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Solution

The fourth proportional to 99,444.09, 137,198.22 and 56,418.51 is: 77,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,444.09 : 137,198.22 = 56,418.51 : x
  2. Step 2: Convert to fraction form
    99,444.09/137,198.22 = 56,418.51/x
  3. Step 3: Cross multiply
    99,444.09x = 137,198.22 × 56,418.51
  4. Step 4: Simplify right side
    99,444.09x = 7,740,519,449.98
  5. Step 5: Solve for x
    x = 7,740,519,449.98/99,444.09
  6. Step 6: Final answer
    x = 77,837.90

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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.