Home / 165,419.37-248,153.66-76,681.85

Finding the Fourth Proportional to 165,419.37, 248,153.66 and 76,681.85

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Solution

The fourth proportional to 165,419.37, 248,153.66 and 76,681.85 is: 115,034.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,419.37 : 248,153.66 = 76,681.85 : x
  2. Step 2: Convert to fraction form
    165,419.37/248,153.66 = 76,681.85/x
  3. Step 3: Cross multiply
    165,419.37x = 248,153.66 × 76,681.85
  4. Step 4: Simplify right side
    165,419.37x = 19,028,880,684.01
  5. Step 5: Solve for x
    x = 19,028,880,684.01/165,419.37
  6. Step 6: Final answer
    x = 115,034.17

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1.5x scale

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.