Home / 118,213.71-162,983.34-85,921.80

Finding the Fourth Proportional to 118,213.71, 162,983.34 and 85,921.80

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Solution

The fourth proportional to 118,213.71, 162,983.34 and 85,921.80 is: 118,461.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,213.71 : 162,983.34 = 85,921.80 : x
  2. Step 2: Convert to fraction form
    118,213.71/162,983.34 = 85,921.80/x
  3. Step 3: Cross multiply
    118,213.71x = 162,983.34 × 85,921.80
  4. Step 4: Simplify right side
    118,213.71x = 14,003,821,942.81
  5. Step 5: Solve for x
    x = 14,003,821,942.81/118,213.71
  6. Step 6: Final answer
    x = 118,461.91

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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.