Home / 124,106.96-186,157.20-39,872.90

Finding the Fourth Proportional to 124,106.96, 186,157.20 and 39,872.90

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Solution

The fourth proportional to 124,106.96, 186,157.20 and 39,872.90 is: 59,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,106.96 : 186,157.20 = 39,872.90 : x
  2. Step 2: Convert to fraction form
    124,106.96/186,157.20 = 39,872.90/x
  3. Step 3: Cross multiply
    124,106.96x = 186,157.20 × 39,872.90
  4. Step 4: Simplify right side
    124,106.96x = 7,422,627,419.88
  5. Step 5: Solve for x
    x = 7,422,627,419.88/124,106.96
  6. Step 6: Final answer
    x = 59,808.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.