Home / 133,831.12-184,673.64-77,260.72

Finding the Fourth Proportional to 133,831.12, 184,673.64 and 77,260.72

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Solution

The fourth proportional to 133,831.12, 184,673.64 and 77,260.72 is: 106,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,831.12 : 184,673.64 = 77,260.72 : x
  2. Step 2: Convert to fraction form
    133,831.12/184,673.64 = 77,260.72/x
  3. Step 3: Cross multiply
    133,831.12x = 184,673.64 × 77,260.72
  4. Step 4: Simplify right side
    133,831.12x = 14,268,018,391.42
  5. Step 5: Solve for x
    x = 14,268,018,391.42/133,831.12
  6. Step 6: Final answer
    x = 106,612.11

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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.