Home / 130,047.96-178,776.78-111,831.87

Finding the Fourth Proportional to 130,047.96, 178,776.78 and 111,831.87

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Solution

The fourth proportional to 130,047.96, 178,776.78 and 111,831.87 is: 153,735.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,047.96 : 178,776.78 = 111,831.87 : x
  2. Step 2: Convert to fraction form
    130,047.96/178,776.78 = 111,831.87/x
  3. Step 3: Cross multiply
    130,047.96x = 178,776.78 × 111,831.87
  4. Step 4: Simplify right side
    130,047.96x = 19,992,941,619.98
  5. Step 5: Solve for x
    x = 19,992,941,619.98/130,047.96
  6. Step 6: Final answer
    x = 153,735.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.