Home / 108,548.70-162,823.05-90,116.70

Finding the Fourth Proportional to 108,548.70, 162,823.05 and 90,116.70

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Solution

The fourth proportional to 108,548.70, 162,823.05 and 90,116.70 is: 135,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,548.70 : 162,823.05 = 90,116.70 : x
  2. Step 2: Convert to fraction form
    108,548.70/162,823.05 = 90,116.70/x
  3. Step 3: Cross multiply
    108,548.70x = 162,823.05 × 90,116.70
  4. Step 4: Simplify right side
    108,548.70x = 14,673,075,949.94
  5. Step 5: Solve for x
    x = 14,673,075,949.94/108,548.70
  6. Step 6: Final answer
    x = 135,175.05

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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.