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Finding the Fourth Proportional to 108,099.95, 162,179.65 and 51,987.00

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Solution

The fourth proportional to 108,099.95, 162,179.65 and 51,987.00 is: 77,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,099.95 : 162,179.65 = 51,987.00 : x
  2. Step 2: Convert to fraction form
    108,099.95/162,179.65 = 51,987.00/x
  3. Step 3: Cross multiply
    108,099.95x = 162,179.65 × 51,987.00
  4. Step 4: Simplify right side
    108,099.95x = 8,431,233,225.45
  5. Step 5: Solve for x
    x = 8,431,233,225.45/108,099.95
  6. Step 6: Final answer
    x = 77,994.79

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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.