Home / 108,498.40-162,661.20-46,117.60

Finding the Fourth Proportional to 108,498.40, 162,661.20 and 46,117.60

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Solution

The fourth proportional to 108,498.40, 162,661.20 and 46,117.60 is: 69,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,498.40 : 162,661.20 = 46,117.60 : x
  2. Step 2: Convert to fraction form
    108,498.40/162,661.20 = 46,117.60/x
  3. Step 3: Cross multiply
    108,498.40x = 162,661.20 × 46,117.60
  4. Step 4: Simplify right side
    108,498.40x = 7,501,544,157.12
  5. Step 5: Solve for x
    x = 7,501,544,157.12/108,498.40
  6. Step 6: Final answer
    x = 69,139.68

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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.