Home / 105,907.20-158,601.60-50,438.40

Finding the Fourth Proportional to 105,907.20, 158,601.60 and 50,438.40

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Solution

The fourth proportional to 105,907.20, 158,601.60 and 50,438.40 is: 75,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,907.20 : 158,601.60 = 50,438.40 : x
  2. Step 2: Convert to fraction form
    105,907.20/158,601.60 = 50,438.40/x
  3. Step 3: Cross multiply
    105,907.20x = 158,601.60 × 50,438.40
  4. Step 4: Simplify right side
    105,907.20x = 7,999,610,941.44
  5. Step 5: Solve for x
    x = 7,999,610,941.44/105,907.20
  6. Step 6: Final answer
    x = 75,534.16

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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.