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Finding the Fourth Proportional to 108,316.80, 162,410.40 and 55,828.80

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Solution

The fourth proportional to 108,316.80, 162,410.40 and 55,828.80 is: 83,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,316.80 : 162,410.40 = 55,828.80 : x
  2. Step 2: Convert to fraction form
    108,316.80/162,410.40 = 55,828.80/x
  3. Step 3: Cross multiply
    108,316.80x = 162,410.40 × 55,828.80
  4. Step 4: Simplify right side
    108,316.80x = 9,067,177,739.52
  5. Step 5: Solve for x
    x = 9,067,177,739.52/108,316.80
  6. Step 6: Final answer
    x = 83,709.80

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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.