Home / 139,831.32-192,966.93-76,168.97

Finding the Fourth Proportional to 139,831.32, 192,966.93 and 76,168.97

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Solution

The fourth proportional to 139,831.32, 192,966.93 and 76,168.97 is: 105,113.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831.32 : 192,966.93 = 76,168.97 : x
  2. Step 2: Convert to fraction form
    139,831.32/192,966.93 = 76,168.97/x
  3. Step 3: Cross multiply
    139,831.32x = 192,966.93 × 76,168.97
  4. Step 4: Simplify right side
    139,831.32x = 14,698,091,337.33
  5. Step 5: Solve for x
    x = 14,698,091,337.33/139,831.32
  6. Step 6: Final answer
    x = 105,113.01

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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.