Home / 124,693.20-187,121.64-45,808.08

Finding the Fourth Proportional to 124,693.20, 187,121.64 and 45,808.08

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Solution

The fourth proportional to 124,693.20, 187,121.64 and 45,808.08 is: 68,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,693.20 : 187,121.64 = 45,808.08 : x
  2. Step 2: Convert to fraction form
    124,693.20/187,121.64 = 45,808.08/x
  3. Step 3: Cross multiply
    124,693.20x = 187,121.64 × 45,808.08
  4. Step 4: Simplify right side
    124,693.20x = 8,571,683,054.85
  5. Step 5: Solve for x
    x = 8,571,683,054.85/124,693.20
  6. Step 6: Final answer
    x = 68,742.19

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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.