Home / 111,326.16-166,987.08-28,218

Finding the Fourth Proportional to 111,326.16, 166,987.08 and 28,218

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Solution

The fourth proportional to 111,326.16, 166,987.08 and 28,218 is: 42,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,326.16 : 166,987.08 = 28,218 : x
  2. Step 2: Convert to fraction form
    111,326.16/166,987.08 = 28,218/x
  3. Step 3: Cross multiply
    111,326.16x = 166,987.08 × 28,218
  4. Step 4: Simplify right side
    111,326.16x = 4,712,041,423.44
  5. Step 5: Solve for x
    x = 4,712,041,423.44/111,326.16
  6. Step 6: Final answer
    x = 42,326.45

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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.