Home / 74,362.24-102,821.72-73,160.40

Finding the Fourth Proportional to 74,362.24, 102,821.72 and 73,160.40

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Solution

The fourth proportional to 74,362.24, 102,821.72 and 73,160.40 is: 101,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,362.24 : 102,821.72 = 73,160.40 : x
  2. Step 2: Convert to fraction form
    74,362.24/102,821.72 = 73,160.40/x
  3. Step 3: Cross multiply
    74,362.24x = 102,821.72 × 73,160.40
  4. Step 4: Simplify right side
    74,362.24x = 7,522,478,163.89
  5. Step 5: Solve for x
    x = 7,522,478,163.89/74,362.24
  6. Step 6: Final answer
    x = 101,159.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.