Home / 108,544.70-162,817.05-90,112.70

Finding the Fourth Proportional to 108,544.70, 162,817.05 and 90,112.70

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Solution

The fourth proportional to 108,544.70, 162,817.05 and 90,112.70 is: 135,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,544.70 : 162,817.05 = 90,112.70 : x
  2. Step 2: Convert to fraction form
    108,544.70/162,817.05 = 90,112.70/x
  3. Step 3: Cross multiply
    108,544.70x = 162,817.05 × 90,112.70
  4. Step 4: Simplify right side
    108,544.70x = 14,671,883,981.54
  5. Step 5: Solve for x
    x = 14,671,883,981.54/108,544.70
  6. Step 6: Final answer
    x = 135,169.05

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1.5x scale

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.