Home / 113,834.28-170,840.64-79,416.23

Finding the Fourth Proportional to 113,834.28, 170,840.64 and 79,416.23

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Solution

The fourth proportional to 113,834.28, 170,840.64 and 79,416.23 is: 119,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,834.28 : 170,840.64 = 79,416.23 : x
  2. Step 2: Convert to fraction form
    113,834.28/170,840.64 = 79,416.23/x
  3. Step 3: Cross multiply
    113,834.28x = 170,840.64 × 79,416.23
  4. Step 4: Simplify right side
    113,834.28x = 13,567,519,331.03
  5. Step 5: Solve for x
    x = 13,567,519,331.03/113,834.28
  6. Step 6: Final answer
    x = 119,186.58

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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.