Home / 108,315.78-162,338.10-52,140.84

Finding the Fourth Proportional to 108,315.78, 162,338.10 and 52,140.84

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Solution

The fourth proportional to 108,315.78, 162,338.10 and 52,140.84 is: 78,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,315.78 : 162,338.10 = 52,140.84 : x
  2. Step 2: Convert to fraction form
    108,315.78/162,338.10 = 52,140.84/x
  3. Step 3: Cross multiply
    108,315.78x = 162,338.10 × 52,140.84
  4. Step 4: Simplify right side
    108,315.78x = 8,464,444,898.00
  5. Step 5: Solve for x
    x = 8,464,444,898.00/108,315.78
  6. Step 6: Final answer
    x = 78,146.00

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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.