Home / 165,675.90-248,643.45-76,940.40

Finding the Fourth Proportional to 165,675.90, 248,643.45 and 76,940.40

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Solution

The fourth proportional to 165,675.90, 248,643.45 and 76,940.40 is: 115,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,675.90 : 248,643.45 = 76,940.40 : x
  2. Step 2: Convert to fraction form
    165,675.90/248,643.45 = 76,940.40/x
  3. Step 3: Cross multiply
    165,675.90x = 248,643.45 × 76,940.40
  4. Step 4: Simplify right side
    165,675.90x = 19,130,726,500.38
  5. Step 5: Solve for x
    x = 19,130,726,500.38/165,675.90
  6. Step 6: Final answer
    x = 115,470.79

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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.