Home / 188,831.20-282,663.60-109,710.40

Finding the Fourth Proportional to 188,831.20, 282,663.60 and 109,710.40

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Solution

The fourth proportional to 188,831.20, 282,663.60 and 109,710.40 is: 164,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,831.20 : 282,663.60 = 109,710.40 : x
  2. Step 2: Convert to fraction form
    188,831.20/282,663.60 = 109,710.40/x
  3. Step 3: Cross multiply
    188,831.20x = 282,663.60 × 109,710.40
  4. Step 4: Simplify right side
    188,831.20x = 31,011,136,621.44
  5. Step 5: Solve for x
    x = 31,011,136,621.44/188,831.20
  6. Step 6: Final answer
    x = 164,226.76

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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.