Home / 99,477.03-149,187.73-39,478.51

Finding the Fourth Proportional to 99,477.03, 149,187.73 and 39,478.51

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Solution

The fourth proportional to 99,477.03, 149,187.73 and 39,478.51 is: 59,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,477.03 : 149,187.73 = 39,478.51 : x
  2. Step 2: Convert to fraction form
    99,477.03/149,187.73 = 39,478.51/x
  3. Step 3: Cross multiply
    99,477.03x = 149,187.73 × 39,478.51
  4. Step 4: Simplify right side
    99,477.03x = 5,889,709,290.68
  5. Step 5: Solve for x
    x = 5,889,709,290.68/99,477.03
  6. Step 6: Final answer
    x = 59,206.73

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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.