Home / 152,629.20-228,943.80-135,716.40

Finding the Fourth Proportional to 152,629.20, 228,943.80 and 135,716.40

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Solution

The fourth proportional to 152,629.20, 228,943.80 and 135,716.40 is: 203,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,629.20 : 228,943.80 = 135,716.40 : x
  2. Step 2: Convert to fraction form
    152,629.20/228,943.80 = 135,716.40/x
  3. Step 3: Cross multiply
    152,629.20x = 228,943.80 × 135,716.40
  4. Step 4: Simplify right side
    152,629.20x = 31,071,428,338.32
  5. Step 5: Solve for x
    x = 31,071,428,338.32/152,629.20
  6. Step 6: Final answer
    x = 203,574.60

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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.