Home / 105,226.56-145,215.18-57,479.49

Finding the Fourth Proportional to 105,226.56, 145,215.18 and 57,479.49

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Solution

The fourth proportional to 105,226.56, 145,215.18 and 57,479.49 is: 79,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,226.56 : 145,215.18 = 57,479.49 : x
  2. Step 2: Convert to fraction form
    105,226.56/145,215.18 = 57,479.49/x
  3. Step 3: Cross multiply
    105,226.56x = 145,215.18 × 57,479.49
  4. Step 4: Simplify right side
    105,226.56x = 8,346,894,486.66
  5. Step 5: Solve for x
    x = 8,346,894,486.66/105,226.56
  6. Step 6: Final answer
    x = 79,323.08

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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.