Home / 136,647.76-188,574.24-76,222.32

Finding the Fourth Proportional to 136,647.76, 188,574.24 and 76,222.32

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Solution

The fourth proportional to 136,647.76, 188,574.24 and 76,222.32 is: 105,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,647.76 : 188,574.24 = 76,222.32 : x
  2. Step 2: Convert to fraction form
    136,647.76/188,574.24 = 76,222.32/x
  3. Step 3: Cross multiply
    136,647.76x = 188,574.24 × 76,222.32
  4. Step 4: Simplify right side
    136,647.76x = 14,373,566,065.04
  5. Step 5: Solve for x
    x = 14,373,566,065.04/136,647.76
  6. Step 6: Final answer
    x = 105,186.99

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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.