Home / 145,583.53-217,969.79-74,351.93

Finding the Fourth Proportional to 145,583.53, 217,969.79 and 74,351.93

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Solution

The fourth proportional to 145,583.53, 217,969.79 and 74,351.93 is: 111,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,583.53 : 217,969.79 = 74,351.93 : x
  2. Step 2: Convert to fraction form
    145,583.53/217,969.79 = 74,351.93/x
  3. Step 3: Cross multiply
    145,583.53x = 217,969.79 × 74,351.93
  4. Step 4: Simplify right side
    145,583.53x = 16,206,473,106.59
  5. Step 5: Solve for x
    x = 16,206,473,106.59/145,583.53
  6. Step 6: Final answer
    x = 111,320.79

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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.