Home / 124,820.20-187,619.10-122,487.40

Finding the Fourth Proportional to 124,820.20, 187,619.10 and 122,487.40

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Solution

The fourth proportional to 124,820.20, 187,619.10 and 122,487.40 is: 184,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,820.20 : 187,619.10 = 122,487.40 : x
  2. Step 2: Convert to fraction form
    124,820.20/187,619.10 = 122,487.40/x
  3. Step 3: Cross multiply
    124,820.20x = 187,619.10 × 122,487.40
  4. Step 4: Simplify right side
    124,820.20x = 22,980,975,749.34
  5. Step 5: Solve for x
    x = 22,980,975,749.34/124,820.20
  6. Step 6: Final answer
    x = 184,112.63

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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.