Home / 135,055.16-186,434.86-92,831.48

Finding the Fourth Proportional to 135,055.16, 186,434.86 and 92,831.48

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Solution

The fourth proportional to 135,055.16, 186,434.86 and 92,831.48 is: 128,147.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,055.16 : 186,434.86 = 92,831.48 : x
  2. Step 2: Convert to fraction form
    135,055.16/186,434.86 = 92,831.48/x
  3. Step 3: Cross multiply
    135,055.16x = 186,434.86 × 92,831.48
  4. Step 4: Simplify right side
    135,055.16x = 17,307,023,977.39
  5. Step 5: Solve for x
    x = 17,307,023,977.39/135,055.16
  6. Step 6: Final answer
    x = 128,147.82

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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.