Home / 133,370.12-184,043.32-72,928.76

Finding the Fourth Proportional to 133,370.12, 184,043.32 and 72,928.76

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Solution

The fourth proportional to 133,370.12, 184,043.32 and 72,928.76 is: 100,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,370.12 : 184,043.32 = 72,928.76 : x
  2. Step 2: Convert to fraction form
    133,370.12/184,043.32 = 72,928.76/x
  3. Step 3: Cross multiply
    133,370.12x = 184,043.32 × 72,928.76
  4. Step 4: Simplify right side
    133,370.12x = 13,422,051,113.88
  5. Step 5: Solve for x
    x = 13,422,051,113.88/133,370.12
  6. Step 6: Final answer
    x = 100,637.62

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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.