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Finding the Fourth Proportional to 108,959.19, 150,016.10 and 92,979.51

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Solution

The fourth proportional to 108,959.19, 150,016.10 and 92,979.51 is: 128,015.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,959.19 : 150,016.10 = 92,979.51 : x
  2. Step 2: Convert to fraction form
    108,959.19/150,016.10 = 92,979.51/x
  3. Step 3: Cross multiply
    108,959.19x = 150,016.10 × 92,979.51
  4. Step 4: Simplify right side
    108,959.19x = 13,948,423,005.21
  5. Step 5: Solve for x
    x = 13,948,423,005.21/108,959.19
  6. Step 6: Final answer
    x = 128,015.11

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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.