Home / 173,435.98-239,380.24-105,438.54

Finding the Fourth Proportional to 173,435.98, 239,380.24 and 105,438.54

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Solution

The fourth proportional to 173,435.98, 239,380.24 and 105,438.54 is: 145,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,435.98 : 239,380.24 = 105,438.54 : x
  2. Step 2: Convert to fraction form
    173,435.98/239,380.24 = 105,438.54/x
  3. Step 3: Cross multiply
    173,435.98x = 239,380.24 × 105,438.54
  4. Step 4: Simplify right side
    173,435.98x = 25,239,903,010.45
  5. Step 5: Solve for x
    x = 25,239,903,010.45/173,435.98
  6. Step 6: Final answer
    x = 145,528.64

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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.