Home / 135,861.69-203,792.40-89,103.63

Finding the Fourth Proportional to 135,861.69, 203,792.40 and 89,103.63

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Solution

The fourth proportional to 135,861.69, 203,792.40 and 89,103.63 is: 133,655.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,861.69 : 203,792.40 = 89,103.63 : x
  2. Step 2: Convert to fraction form
    135,861.69/203,792.40 = 89,103.63/x
  3. Step 3: Cross multiply
    135,861.69x = 203,792.40 × 89,103.63
  4. Step 4: Simplify right side
    135,861.69x = 18,158,642,606.41
  5. Step 5: Solve for x
    x = 18,158,642,606.41/135,861.69
  6. Step 6: Final answer
    x = 133,655.36

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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.