Home / 118,899.20-164,101.74-90,313.48

Finding the Fourth Proportional to 118,899.20, 164,101.74 and 90,313.48

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Solution

The fourth proportional to 118,899.20, 164,101.74 and 90,313.48 is: 124,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,899.20 : 164,101.74 = 90,313.48 : x
  2. Step 2: Convert to fraction form
    118,899.20/164,101.74 = 90,313.48/x
  3. Step 3: Cross multiply
    118,899.20x = 164,101.74 × 90,313.48
  4. Step 4: Simplify right side
    118,899.20x = 14,820,599,213.46
  5. Step 5: Solve for x
    x = 14,820,599,213.46/118,899.20
  6. Step 6: Final answer
    x = 124,648.44

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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.