Home / 118,119.42-162,999.21-67,130.88

Finding the Fourth Proportional to 118,119.42, 162,999.21 and 67,130.88

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Solution

The fourth proportional to 118,119.42, 162,999.21 and 67,130.88 is: 92,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,119.42 : 162,999.21 = 67,130.88 : x
  2. Step 2: Convert to fraction form
    118,119.42/162,999.21 = 67,130.88/x
  3. Step 3: Cross multiply
    118,119.42x = 162,999.21 × 67,130.88
  4. Step 4: Simplify right side
    118,119.42x = 10,942,280,406.60
  5. Step 5: Solve for x
    x = 10,942,280,406.60/118,119.42
  6. Step 6: Final answer
    x = 92,637.44

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1.5x scale

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.