Home / 133,390.71-184,085.07-76,820.31

Finding the Fourth Proportional to 133,390.71, 184,085.07 and 76,820.31

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Solution

The fourth proportional to 133,390.71, 184,085.07 and 76,820.31 is: 106,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,390.71 : 184,085.07 = 76,820.31 : x
  2. Step 2: Convert to fraction form
    133,390.71/184,085.07 = 76,820.31/x
  3. Step 3: Cross multiply
    133,390.71x = 184,085.07 × 76,820.31
  4. Step 4: Simplify right side
    133,390.71x = 14,141,472,143.77
  5. Step 5: Solve for x
    x = 14,141,472,143.77/133,390.71
  6. Step 6: Final answer
    x = 106,015.42

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1.5x scale

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.