Home / 111,756.24-154,214.26-65,808.58

Finding the Fourth Proportional to 111,756.24, 154,214.26 and 65,808.58

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Solution

The fourth proportional to 111,756.24, 154,214.26 and 65,808.58 is: 90,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,756.24 : 154,214.26 = 65,808.58 : x
  2. Step 2: Convert to fraction form
    111,756.24/154,214.26 = 65,808.58/x
  3. Step 3: Cross multiply
    111,756.24x = 154,214.26 × 65,808.58
  4. Step 4: Simplify right side
    111,756.24x = 10,148,621,466.35
  5. Step 5: Solve for x
    x = 10,148,621,466.35/111,756.24
  6. Step 6: Final answer
    x = 90,810.33

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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.