Home / 105,226.58-145,215.79-57,480.71

Finding the Fourth Proportional to 105,226.58, 145,215.79 and 57,480.71

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Solution

The fourth proportional to 105,226.58, 145,215.79 and 57,480.71 is: 79,325.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,226.58 : 145,215.79 = 57,480.71 : x
  2. Step 2: Convert to fraction form
    105,226.58/145,215.79 = 57,480.71/x
  3. Step 3: Cross multiply
    105,226.58x = 145,215.79 × 57,480.71
  4. Step 4: Simplify right side
    105,226.58x = 8,347,105,842.63
  5. Step 5: Solve for x
    x = 8,347,105,842.63/105,226.58
  6. Step 6: Final answer
    x = 79,325.07

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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.