Home / 278,763.37-418,172.64-89,176.12

Finding the Fourth Proportional to 278,763.37, 418,172.64 and 89,176.12

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Solution

The fourth proportional to 278,763.37, 418,172.64 and 89,176.12 is: 133,773.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,763.37 : 418,172.64 = 89,176.12 : x
  2. Step 2: Convert to fraction form
    278,763.37/418,172.64 = 89,176.12/x
  3. Step 3: Cross multiply
    278,763.37x = 418,172.64 × 89,176.12
  4. Step 4: Simplify right side
    278,763.37x = 37,291,013,525.36
  5. Step 5: Solve for x
    x = 37,291,013,525.36/278,763.37
  6. Step 6: Final answer
    x = 133,773.00

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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.