Home / 130,047.46-178,776.10-111,831.37

Finding the Fourth Proportional to 130,047.46, 178,776.10 and 111,831.37

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Solution

The fourth proportional to 130,047.46, 178,776.10 and 111,831.37 is: 153,734.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,047.46 : 178,776.10 = 111,831.37 : x
  2. Step 2: Convert to fraction form
    130,047.46/178,776.10 = 111,831.37/x
  3. Step 3: Cross multiply
    130,047.46x = 178,776.10 × 111,831.37
  4. Step 4: Simplify right side
    130,047.46x = 19,992,776,186.26
  5. Step 5: Solve for x
    x = 19,992,776,186.26/130,047.46
  6. Step 6: Final answer
    x = 153,734.46

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1.5x scale

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.