Home / 89,172.84-133,499.96-69,391.44

Finding the Fourth Proportional to 89,172.84, 133,499.96 and 69,391.44

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Solution

The fourth proportional to 89,172.84, 133,499.96 and 69,391.44 is: 103,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,172.84 : 133,499.96 = 69,391.44 : x
  2. Step 2: Convert to fraction form
    89,172.84/133,499.96 = 69,391.44/x
  3. Step 3: Cross multiply
    89,172.84x = 133,499.96 × 69,391.44
  4. Step 4: Simplify right side
    89,172.84x = 9,263,754,464.34
  5. Step 5: Solve for x
    x = 9,263,754,464.34/89,172.84
  6. Step 6: Final answer
    x = 103,885.38

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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.