Home / 108,545.80-162,588.30-90,113.80

Finding the Fourth Proportional to 108,545.80, 162,588.30 and 90,113.80

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Solution

The fourth proportional to 108,545.80, 162,588.30 and 90,113.80 is: 134,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,545.80 : 162,588.30 = 90,113.80 : x
  2. Step 2: Convert to fraction form
    108,545.80/162,588.30 = 90,113.80/x
  3. Step 3: Cross multiply
    108,545.80x = 162,588.30 × 90,113.80
  4. Step 4: Simplify right side
    108,545.80x = 14,651,449,548.54
  5. Step 5: Solve for x
    x = 14,651,449,548.54/108,545.80
  6. Step 6: Final answer
    x = 134,979.42

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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.