Home / 285,786.32-428,679.57-105,933.59

Finding the Fourth Proportional to 285,786.32, 428,679.57 and 105,933.59

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Solution

The fourth proportional to 285,786.32, 428,679.57 and 105,933.59 is: 158,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,786.32 : 428,679.57 = 105,933.59 : x
  2. Step 2: Convert to fraction form
    285,786.32/428,679.57 = 105,933.59/x
  3. Step 3: Cross multiply
    285,786.32x = 428,679.57 × 105,933.59
  4. Step 4: Simplify right side
    285,786.32x = 45,411,563,666.36
  5. Step 5: Solve for x
    x = 45,411,563,666.36/285,786.32
  6. Step 6: Final answer
    x = 158,900.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.