Home / 128,014.04-176,185.38-93,968.60

Finding the Fourth Proportional to 128,014.04, 176,185.38 and 93,968.60

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Solution

The fourth proportional to 128,014.04, 176,185.38 and 93,968.60 is: 129,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,014.04 : 176,185.38 = 93,968.60 : x
  2. Step 2: Convert to fraction form
    128,014.04/176,185.38 = 93,968.60/x
  3. Step 3: Cross multiply
    128,014.04x = 176,185.38 × 93,968.60
  4. Step 4: Simplify right side
    128,014.04x = 16,555,892,823.68
  5. Step 5: Solve for x
    x = 16,555,892,823.68/128,014.04
  6. Step 6: Final answer
    x = 129,328.73

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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.