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Finding the Fourth Proportional to 128,041.60, 192,062.40 and 44,924.80

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Solution

The fourth proportional to 128,041.60, 192,062.40 and 44,924.80 is: 67,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,041.60 : 192,062.40 = 44,924.80 : x
  2. Step 2: Convert to fraction form
    128,041.60/192,062.40 = 44,924.80/x
  3. Step 3: Cross multiply
    128,041.60x = 192,062.40 × 44,924.80
  4. Step 4: Simplify right side
    128,041.60x = 8,628,364,907.52
  5. Step 5: Solve for x
    x = 8,628,364,907.52/128,041.60
  6. Step 6: Final answer
    x = 67,387.20

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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.