Home / 136,901.42-188,918.43-76,471.10

Finding the Fourth Proportional to 136,901.42, 188,918.43 and 76,471.10

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Solution

The fourth proportional to 136,901.42, 188,918.43 and 76,471.10 is: 105,527.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,901.42 : 188,918.43 = 76,471.10 : x
  2. Step 2: Convert to fraction form
    136,901.42/188,918.43 = 76,471.10/x
  3. Step 3: Cross multiply
    136,901.42x = 188,918.43 × 76,471.10
  4. Step 4: Simplify right side
    136,901.42x = 14,446,800,152.37
  5. Step 5: Solve for x
    x = 14,446,800,152.37/136,901.42
  6. Step 6: Final answer
    x = 105,527.03

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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.