Home / 145,979.80-218,969.70-116,455.30

Finding the Fourth Proportional to 145,979.80, 218,969.70 and 116,455.30

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Solution

The fourth proportional to 145,979.80, 218,969.70 and 116,455.30 is: 174,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,979.80 : 218,969.70 = 116,455.30 : x
  2. Step 2: Convert to fraction form
    145,979.80/218,969.70 = 116,455.30/x
  3. Step 3: Cross multiply
    145,979.80x = 218,969.70 × 116,455.30
  4. Step 4: Simplify right side
    145,979.80x = 25,500,182,104.41
  5. Step 5: Solve for x
    x = 25,500,182,104.41/145,979.80
  6. Step 6: Final answer
    x = 174,682.95

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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.