Home / 105,886.21-146,121.96-58,139.14

Finding the Fourth Proportional to 105,886.21, 146,121.96 and 58,139.14

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Solution

The fourth proportional to 105,886.21, 146,121.96 and 58,139.14 is: 80,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,886.21 : 146,121.96 = 58,139.14 : x
  2. Step 2: Convert to fraction form
    105,886.21/146,121.96 = 58,139.14/x
  3. Step 3: Cross multiply
    105,886.21x = 146,121.96 × 58,139.14
  4. Step 4: Simplify right side
    105,886.21x = 8,495,405,089.51
  5. Step 5: Solve for x
    x = 8,495,405,089.51/105,886.21
  6. Step 6: Final answer
    x = 80,231.46

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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.