Home / 145,819.80-218,394.32-121,697.19

Finding the Fourth Proportional to 145,819.80, 218,394.32 and 121,697.19

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Solution

The fourth proportional to 145,819.80, 218,394.32 and 121,697.19 is: 182,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,819.80 : 218,394.32 = 121,697.19 : x
  2. Step 2: Convert to fraction form
    145,819.80/218,394.32 = 121,697.19/x
  3. Step 3: Cross multiply
    145,819.80x = 218,394.32 × 121,697.19
  4. Step 4: Simplify right side
    145,819.80x = 26,577,974,447.47
  5. Step 5: Solve for x
    x = 26,577,974,447.47/145,819.80
  6. Step 6: Final answer
    x = 182,265.88

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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.