Home / 121,826.10-168,171.84-74,094.78

Finding the Fourth Proportional to 121,826.10, 168,171.84 and 74,094.78

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Solution

The fourth proportional to 121,826.10, 168,171.84 and 74,094.78 is: 102,282.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,826.10 : 168,171.84 = 74,094.78 : x
  2. Step 2: Convert to fraction form
    121,826.10/168,171.84 = 74,094.78/x
  3. Step 3: Cross multiply
    121,826.10x = 168,171.84 × 74,094.78
  4. Step 4: Simplify right side
    121,826.10x = 12,460,655,487.00
  5. Step 5: Solve for x
    x = 12,460,655,487.00/121,826.10
  6. Step 6: Final answer
    x = 102,282.31

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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.