Home / 105,247.32-145,239.48-57,499.44

Finding the Fourth Proportional to 105,247.32, 145,239.48 and 57,499.44

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Solution

The fourth proportional to 105,247.32, 145,239.48 and 57,499.44 is: 79,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,247.32 : 145,239.48 = 57,499.44 : x
  2. Step 2: Convert to fraction form
    105,247.32/145,239.48 = 57,499.44/x
  3. Step 3: Cross multiply
    105,247.32x = 145,239.48 × 57,499.44
  4. Step 4: Simplify right side
    105,247.32x = 8,351,188,765.89
  5. Step 5: Solve for x
    x = 8,351,188,765.89/105,247.32
  6. Step 6: Final answer
    x = 79,348.23

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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.