Home / 129,334.23-178,460.66-72,734.67

Finding the Fourth Proportional to 129,334.23, 178,460.66 and 72,734.67

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Solution

The fourth proportional to 129,334.23, 178,460.66 and 72,734.67 is: 100,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,334.23 : 178,460.66 = 72,734.67 : x
  2. Step 2: Convert to fraction form
    129,334.23/178,460.66 = 72,734.67/x
  3. Step 3: Cross multiply
    129,334.23x = 178,460.66 × 72,734.67
  4. Step 4: Simplify right side
    129,334.23x = 12,980,277,394.92
  5. Step 5: Solve for x
    x = 12,980,277,394.92/129,334.23
  6. Step 6: Final answer
    x = 100,362.27

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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.