Home / 158,688.31-218,790.61-116,173.03

Finding the Fourth Proportional to 158,688.31, 218,790.61 and 116,173.03

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Solution

The fourth proportional to 158,688.31, 218,790.61 and 116,173.03 is: 160,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,688.31 : 218,790.61 = 116,173.03 : x
  2. Step 2: Convert to fraction form
    158,688.31/218,790.61 = 116,173.03/x
  3. Step 3: Cross multiply
    158,688.31x = 218,790.61 × 116,173.03
  4. Step 4: Simplify right side
    158,688.31x = 25,417,568,099.25
  5. Step 5: Solve for x
    x = 25,417,568,099.25/158,688.31
  6. Step 6: Final answer
    x = 160,172.91

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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.