Home / 173,721.40-260,075-106,961.20

Finding the Fourth Proportional to 173,721.40, 260,075 and 106,961.20

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Solution

The fourth proportional to 173,721.40, 260,075 and 106,961.20 is: 160,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,721.40 : 260,075 = 106,961.20 : x
  2. Step 2: Convert to fraction form
    173,721.40/260,075 = 106,961.20/x
  3. Step 3: Cross multiply
    173,721.40x = 260,075 × 106,961.20
  4. Step 4: Simplify right side
    173,721.40x = 27,817,934,090
  5. Step 5: Solve for x
    x = 27,817,934,090/173,721.40
  6. Step 6: Final answer
    x = 160,129.58

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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.