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Finding the Fourth Proportional to 108,316.80, 162,280.80 and 92,764.80

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Solution

The fourth proportional to 108,316.80, 162,280.80 and 92,764.80 is: 138,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,316.80 : 162,280.80 = 92,764.80 : x
  2. Step 2: Convert to fraction form
    108,316.80/162,280.80 = 92,764.80/x
  3. Step 3: Cross multiply
    108,316.80x = 162,280.80 × 92,764.80
  4. Step 4: Simplify right side
    108,316.80x = 15,053,945,955.84
  5. Step 5: Solve for x
    x = 15,053,945,955.84/108,316.80
  6. Step 6: Final answer
    x = 138,980.71

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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.