Home / 172,830.06-260,178.75-155,450.21

Finding the Fourth Proportional to 172,830.06, 260,178.75 and 155,450.21

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Solution

The fourth proportional to 172,830.06, 260,178.75 and 155,450.21 is: 234,015.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,830.06 : 260,178.75 = 155,450.21 : x
  2. Step 2: Convert to fraction form
    172,830.06/260,178.75 = 155,450.21/x
  3. Step 3: Cross multiply
    172,830.06x = 260,178.75 × 155,450.21
  4. Step 4: Simplify right side
    172,830.06x = 40,444,840,024.14
  5. Step 5: Solve for x
    x = 40,444,840,024.14/172,830.06
  6. Step 6: Final answer
    x = 234,015.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.