Home / 102,978.30-154,273.05-52,887.90

Finding the Fourth Proportional to 102,978.30, 154,273.05 and 52,887.90

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Solution

The fourth proportional to 102,978.30, 154,273.05 and 52,887.90 is: 79,232.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,978.30 : 154,273.05 = 52,887.90 : x
  2. Step 2: Convert to fraction form
    102,978.30/154,273.05 = 52,887.90/x
  3. Step 3: Cross multiply
    102,978.30x = 154,273.05 × 52,887.90
  4. Step 4: Simplify right side
    102,978.30x = 8,159,177,641.10
  5. Step 5: Solve for x
    x = 8,159,177,641.10/102,978.30
  6. Step 6: Final answer
    x = 79,232.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.