Home / 129,204.96-193,889.52-66,875.46

Finding the Fourth Proportional to 129,204.96, 193,889.52 and 66,875.46

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Solution

The fourth proportional to 129,204.96, 193,889.52 and 66,875.46 is: 100,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,204.96 : 193,889.52 = 66,875.46 : x
  2. Step 2: Convert to fraction form
    129,204.96/193,889.52 = 66,875.46/x
  3. Step 3: Cross multiply
    129,204.96x = 193,889.52 × 66,875.46
  4. Step 4: Simplify right side
    129,204.96x = 12,966,450,839.18
  5. Step 5: Solve for x
    x = 12,966,450,839.18/129,204.96
  6. Step 6: Final answer
    x = 100,355.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.