Home / 138,065.24-190,594.20-104,087.48

Finding the Fourth Proportional to 138,065.24, 190,594.20 and 104,087.48

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Solution

The fourth proportional to 138,065.24, 190,594.20 and 104,087.48 is: 143,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,065.24 : 190,594.20 = 104,087.48 : x
  2. Step 2: Convert to fraction form
    138,065.24/190,594.20 = 104,087.48/x
  3. Step 3: Cross multiply
    138,065.24x = 190,594.20 × 104,087.48
  4. Step 4: Simplify right side
    138,065.24x = 19,838,469,980.62
  5. Step 5: Solve for x
    x = 19,838,469,980.62/138,065.24
  6. Step 6: Final answer
    x = 143,689.10

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1.5x scale

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.