Home / 124,788.63-187,270.43-72,125.67

Finding the Fourth Proportional to 124,788.63, 187,270.43 and 72,125.67

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Solution

The fourth proportional to 124,788.63, 187,270.43 and 72,125.67 is: 108,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,788.63 : 187,270.43 = 72,125.67 : x
  2. Step 2: Convert to fraction form
    124,788.63/187,270.43 = 72,125.67/x
  3. Step 3: Cross multiply
    124,788.63x = 187,270.43 × 72,125.67
  4. Step 4: Simplify right side
    124,788.63x = 13,507,004,874.31
  5. Step 5: Solve for x
    x = 13,507,004,874.31/124,788.63
  6. Step 6: Final answer
    x = 108,239.07

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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.