Home / 105,356.09-158,010.41-30,459.58

Finding the Fourth Proportional to 105,356.09, 158,010.41 and 30,459.58

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Solution

The fourth proportional to 105,356.09, 158,010.41 and 30,459.58 is: 45,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,356.09 : 158,010.41 = 30,459.58 : x
  2. Step 2: Convert to fraction form
    105,356.09/158,010.41 = 30,459.58/x
  3. Step 3: Cross multiply
    105,356.09x = 158,010.41 × 30,459.58
  4. Step 4: Simplify right side
    105,356.09x = 4,812,930,405.35
  5. Step 5: Solve for x
    x = 4,812,930,405.35/105,356.09
  6. Step 6: Final answer
    x = 45,682.51

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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.