Home / 136,454.36-188,320.80-76,034.84

Finding the Fourth Proportional to 136,454.36, 188,320.80 and 76,034.84

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Solution

The fourth proportional to 136,454.36, 188,320.80 and 76,034.84 is: 104,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,454.36 : 188,320.80 = 76,034.84 : x
  2. Step 2: Convert to fraction form
    136,454.36/188,320.80 = 76,034.84/x
  3. Step 3: Cross multiply
    136,454.36x = 188,320.80 × 76,034.84
  4. Step 4: Simplify right side
    136,454.36x = 14,318,941,896.67
  5. Step 5: Solve for x
    x = 14,318,941,896.67/136,454.36
  6. Step 6: Final answer
    x = 104,935.76

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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.