Home / 115,273.47-172,925.33-45,143.67

Finding the Fourth Proportional to 115,273.47, 172,925.33 and 45,143.67

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Solution

The fourth proportional to 115,273.47, 172,925.33 and 45,143.67 is: 67,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,273.47 : 172,925.33 = 45,143.67 : x
  2. Step 2: Convert to fraction form
    115,273.47/172,925.33 = 45,143.67/x
  3. Step 3: Cross multiply
    115,273.47x = 172,925.33 × 45,143.67
  4. Step 4: Simplify right side
    115,273.47x = 7,806,483,806.44
  5. Step 5: Solve for x
    x = 7,806,483,806.44/115,273.47
  6. Step 6: Final answer
    x = 67,721.43

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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.