Home / 128,041.20-192,061.80-44,943.60

Finding the Fourth Proportional to 128,041.20, 192,061.80 and 44,943.60

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Solution

The fourth proportional to 128,041.20, 192,061.80 and 44,943.60 is: 67,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,041.20 : 192,061.80 = 44,943.60 : x
  2. Step 2: Convert to fraction form
    128,041.20/192,061.80 = 44,943.60/x
  3. Step 3: Cross multiply
    128,041.20x = 192,061.80 × 44,943.60
  4. Step 4: Simplify right side
    128,041.20x = 8,631,948,714.48
  5. Step 5: Solve for x
    x = 8,631,948,714.48/128,041.20
  6. Step 6: Final answer
    x = 67,415.40

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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.