Home / 104,261.87-143,868.51-74,036.18

Finding the Fourth Proportional to 104,261.87, 143,868.51 and 74,036.18

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Solution

The fourth proportional to 104,261.87, 143,868.51 and 74,036.18 is: 102,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,261.87 : 143,868.51 = 74,036.18 : x
  2. Step 2: Convert to fraction form
    104,261.87/143,868.51 = 74,036.18/x
  3. Step 3: Cross multiply
    104,261.87x = 143,868.51 × 74,036.18
  4. Step 4: Simplify right side
    104,261.87x = 10,651,475,262.36
  5. Step 5: Solve for x
    x = 10,651,475,262.36/104,261.87
  6. Step 6: Final answer
    x = 102,160.79

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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.