Home / 105,073.56-157,618.02-30,190.68

Finding the Fourth Proportional to 105,073.56, 157,618.02 and 30,190.68

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Solution

The fourth proportional to 105,073.56, 157,618.02 and 30,190.68 is: 45,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,073.56 : 157,618.02 = 30,190.68 : x
  2. Step 2: Convert to fraction form
    105,073.56/157,618.02 = 30,190.68/x
  3. Step 3: Cross multiply
    105,073.56x = 157,618.02 × 30,190.68
  4. Step 4: Simplify right side
    105,073.56x = 4,758,595,204.05
  5. Step 5: Solve for x
    x = 4,758,595,204.05/105,073.56
  6. Step 6: Final answer
    x = 45,288.23

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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.