Home / 105,231.74-145,229.81-57,492.27

Finding the Fourth Proportional to 105,231.74, 145,229.81 and 57,492.27

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Solution

The fourth proportional to 105,231.74, 145,229.81 and 57,492.27 is: 79,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,231.74 : 145,229.81 = 57,492.27 : x
  2. Step 2: Convert to fraction form
    105,231.74/145,229.81 = 57,492.27/x
  3. Step 3: Cross multiply
    105,231.74x = 145,229.81 × 57,492.27
  4. Step 4: Simplify right side
    105,231.74x = 8,349,591,161.11
  5. Step 5: Solve for x
    x = 8,349,591,161.11/105,231.74
  6. Step 6: Final answer
    x = 79,344.80

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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.