Home / 112,907.37-155,812.39-61,920.46

Finding the Fourth Proportional to 112,907.37, 155,812.39 and 61,920.46

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Solution

The fourth proportional to 112,907.37, 155,812.39 and 61,920.46 is: 85,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,907.37 : 155,812.39 = 61,920.46 : x
  2. Step 2: Convert to fraction form
    112,907.37/155,812.39 = 61,920.46/x
  3. Step 3: Cross multiply
    112,907.37x = 155,812.39 × 61,920.46
  4. Step 4: Simplify right side
    112,907.37x = 9,647,973,773.84
  5. Step 5: Solve for x
    x = 9,647,973,773.84/112,907.37
  6. Step 6: Final answer
    x = 85,450.35

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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.