Home / 118,898.20-164,100.36-90,312.48

Finding the Fourth Proportional to 118,898.20, 164,100.36 and 90,312.48

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Solution

The fourth proportional to 118,898.20, 164,100.36 and 90,312.48 is: 124,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,898.20 : 164,100.36 = 90,312.48 : x
  2. Step 2: Convert to fraction form
    118,898.20/164,100.36 = 90,312.48/x
  3. Step 3: Cross multiply
    118,898.20x = 164,100.36 × 90,312.48
  4. Step 4: Simplify right side
    118,898.20x = 14,820,310,480.49
  5. Step 5: Solve for x
    x = 14,820,310,480.49/118,898.20
  6. Step 6: Final answer
    x = 124,647.06

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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.