Home / 126,728.58-174,894.30-70,143.60

Finding the Fourth Proportional to 126,728.58, 174,894.30 and 70,143.60

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Solution

The fourth proportional to 126,728.58, 174,894.30 and 70,143.60 is: 96,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,728.58 : 174,894.30 = 70,143.60 : x
  2. Step 2: Convert to fraction form
    126,728.58/174,894.30 = 70,143.60/x
  3. Step 3: Cross multiply
    126,728.58x = 174,894.30 × 70,143.60
  4. Step 4: Simplify right side
    126,728.58x = 12,267,715,821.48
  5. Step 5: Solve for x
    x = 12,267,715,821.48/126,728.58
  6. Step 6: Final answer
    x = 96,803.07

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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.