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Finding the Fourth Proportional to 108,633.78, 162,207.50 and 97,316.06

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Solution

The fourth proportional to 108,633.78, 162,207.50 and 97,316.06 is: 145,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,633.78 : 162,207.50 = 97,316.06 : x
  2. Step 2: Convert to fraction form
    108,633.78/162,207.50 = 97,316.06/x
  3. Step 3: Cross multiply
    108,633.78x = 162,207.50 × 97,316.06
  4. Step 4: Simplify right side
    108,633.78x = 15,785,393,504.83
  5. Step 5: Solve for x
    x = 15,785,393,504.83/108,633.78
  6. Step 6: Final answer
    x = 145,308.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.