Home / 108,529.40-162,947.70-85,182.20

Finding the Fourth Proportional to 108,529.40, 162,947.70 and 85,182.20

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Solution

The fourth proportional to 108,529.40, 162,947.70 and 85,182.20 is: 127,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,529.40 : 162,947.70 = 85,182.20 : x
  2. Step 2: Convert to fraction form
    108,529.40/162,947.70 = 85,182.20/x
  3. Step 3: Cross multiply
    108,529.40x = 162,947.70 × 85,182.20
  4. Step 4: Simplify right side
    108,529.40x = 13,880,243,570.94
  5. Step 5: Solve for x
    x = 13,880,243,570.94/108,529.40
  6. Step 6: Final answer
    x = 127,893.86

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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.