Home / 149,815.96-206,742.42-86,152.36

Finding the Fourth Proportional to 149,815.96, 206,742.42 and 86,152.36

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Solution

The fourth proportional to 149,815.96, 206,742.42 and 86,152.36 is: 118,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,815.96 : 206,742.42 = 86,152.36 : x
  2. Step 2: Convert to fraction form
    149,815.96/206,742.42 = 86,152.36/x
  3. Step 3: Cross multiply
    149,815.96x = 206,742.42 × 86,152.36
  4. Step 4: Simplify right side
    149,815.96x = 17,811,347,395.11
  5. Step 5: Solve for x
    x = 17,811,347,395.11/149,815.96
  6. Step 6: Final answer
    x = 118,888.18

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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.