Home / 124,307.21-186,487.83-45,421.31

Finding the Fourth Proportional to 124,307.21, 186,487.83 and 45,421.31

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Solution

The fourth proportional to 124,307.21, 186,487.83 and 45,421.31 is: 68,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,307.21 : 186,487.83 = 45,421.31 : x
  2. Step 2: Convert to fraction form
    124,307.21/186,487.83 = 45,421.31/x
  3. Step 3: Cross multiply
    124,307.21x = 186,487.83 × 45,421.31
  4. Step 4: Simplify right side
    124,307.21x = 8,470,522,003.88
  5. Step 5: Solve for x
    x = 8,470,522,003.88/124,307.21
  6. Step 6: Final answer
    x = 68,141.84

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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.