Home / 99,435.94-137,190.66-56,408.32

Finding the Fourth Proportional to 99,435.94, 137,190.66 and 56,408.32

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Solution

The fourth proportional to 99,435.94, 137,190.66 and 56,408.32 is: 77,825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,435.94 : 137,190.66 = 56,408.32 : x
  2. Step 2: Convert to fraction form
    99,435.94/137,190.66 = 56,408.32/x
  3. Step 3: Cross multiply
    99,435.94x = 137,190.66 × 56,408.32
  4. Step 4: Simplify right side
    99,435.94x = 7,738,694,650.29
  5. Step 5: Solve for x
    x = 7,738,694,650.29/99,435.94
  6. Step 6: Final answer
    x = 77,825.93

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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.