Home / 128,831.12-193,314.24-93,583.64

Finding the Fourth Proportional to 128,831.12, 193,314.24 and 93,583.64

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Solution

The fourth proportional to 128,831.12, 193,314.24 and 93,583.64 is: 140,424.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,831.12 : 193,314.24 = 93,583.64 : x
  2. Step 2: Convert to fraction form
    128,831.12/193,314.24 = 93,583.64/x
  3. Step 3: Cross multiply
    128,831.12x = 193,314.24 × 93,583.64
  4. Step 4: Simplify right side
    128,831.12x = 18,091,050,243.03
  5. Step 5: Solve for x
    x = 18,091,050,243.03/128,831.12
  6. Step 6: Final answer
    x = 140,424.54

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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.