Home / 136,647.06-188,574.57-76,222.95

Finding the Fourth Proportional to 136,647.06, 188,574.57 and 76,222.95

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Solution

The fourth proportional to 136,647.06, 188,574.57 and 76,222.95 is: 105,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,647.06 : 188,574.57 = 76,222.95 : x
  2. Step 2: Convert to fraction form
    136,647.06/188,574.57 = 76,222.95/x
  3. Step 3: Cross multiply
    136,647.06x = 188,574.57 × 76,222.95
  4. Step 4: Simplify right side
    136,647.06x = 14,373,710,020.38
  5. Step 5: Solve for x
    x = 14,373,710,020.38/136,647.06
  6. Step 6: Final answer
    x = 105,188.58

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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.