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Finding the Fourth Proportional to 108,235.40, 162,378.70 and 34,363.40

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Solution

The fourth proportional to 108,235.40, 162,378.70 and 34,363.40 is: 51,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,235.40 : 162,378.70 = 34,363.40 : x
  2. Step 2: Convert to fraction form
    108,235.40/162,378.70 = 34,363.40/x
  3. Step 3: Cross multiply
    108,235.40x = 162,378.70 × 34,363.40
  4. Step 4: Simplify right side
    108,235.40x = 5,579,884,219.58
  5. Step 5: Solve for x
    x = 5,579,884,219.58/108,235.40
  6. Step 6: Final answer
    x = 51,553.23

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1.5x scale

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.