Home / 108,436.80-162,647.10-45,240.60

Finding the Fourth Proportional to 108,436.80, 162,647.10 and 45,240.60

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Solution

The fourth proportional to 108,436.80, 162,647.10 and 45,240.60 is: 67,857.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,436.80 : 162,647.10 = 45,240.60 : x
  2. Step 2: Convert to fraction form
    108,436.80/162,647.10 = 45,240.60/x
  3. Step 3: Cross multiply
    108,436.80x = 162,647.10 × 45,240.60
  4. Step 4: Simplify right side
    108,436.80x = 7,358,252,392.26
  5. Step 5: Solve for x
    x = 7,358,252,392.26/108,436.80
  6. Step 6: Final answer
    x = 67,857.52

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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.