Home / 134,738.20-202,107.30-45,978.40

Finding the Fourth Proportional to 134,738.20, 202,107.30 and 45,978.40

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Solution

The fourth proportional to 134,738.20, 202,107.30 and 45,978.40 is: 68,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,738.20 : 202,107.30 = 45,978.40 : x
  2. Step 2: Convert to fraction form
    134,738.20/202,107.30 = 45,978.40/x
  3. Step 3: Cross multiply
    134,738.20x = 202,107.30 × 45,978.40
  4. Step 4: Simplify right side
    134,738.20x = 9,292,570,282.32
  5. Step 5: Solve for x
    x = 9,292,570,282.32/134,738.20
  6. Step 6: Final answer
    x = 68,967.60

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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.