Home / 102,943.19-142,069.72-75,843.19

Finding the Fourth Proportional to 102,943.19, 142,069.72 and 75,843.19

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Solution

The fourth proportional to 102,943.19, 142,069.72 and 75,843.19 is: 104,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,943.19 : 142,069.72 = 75,843.19 : x
  2. Step 2: Convert to fraction form
    102,943.19/142,069.72 = 75,843.19/x
  3. Step 3: Cross multiply
    102,943.19x = 142,069.72 × 75,843.19
  4. Step 4: Simplify right side
    102,943.19x = 10,775,020,521.10
  5. Step 5: Solve for x
    x = 10,775,020,521.10/102,943.19
  6. Step 6: Final answer
    x = 104,669.58

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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.