Home / 135,715.79-203,478.30-59,778.29

Finding the Fourth Proportional to 135,715.79, 203,478.30 and 59,778.29

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Solution

The fourth proportional to 135,715.79, 203,478.30 and 59,778.29 is: 89,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,715.79 : 203,478.30 = 59,778.29 : x
  2. Step 2: Convert to fraction form
    135,715.79/203,478.30 = 59,778.29/x
  3. Step 3: Cross multiply
    135,715.79x = 203,478.30 × 59,778.29
  4. Step 4: Simplify right side
    135,715.79x = 12,163,583,808.72
  5. Step 5: Solve for x
    x = 12,163,583,808.72/135,715.79
  6. Step 6: Final answer
    x = 89,625.42

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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.