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Finding the Fourth Proportional to 108,858.29, 150,214.16 and 61,102.31

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Solution

The fourth proportional to 108,858.29, 150,214.16 and 61,102.31 is: 84,315.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,858.29 : 150,214.16 = 61,102.31 : x
  2. Step 2: Convert to fraction form
    108,858.29/150,214.16 = 61,102.31/x
  3. Step 3: Cross multiply
    108,858.29x = 150,214.16 × 61,102.31
  4. Step 4: Simplify right side
    108,858.29x = 9,178,431,114.13
  5. Step 5: Solve for x
    x = 9,178,431,114.13/108,858.29
  6. Step 6: Final answer
    x = 84,315.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.