Home / 154,827.72-213,681.98-91,171.44

Finding the Fourth Proportional to 154,827.72, 213,681.98 and 91,171.44

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Solution

The fourth proportional to 154,827.72, 213,681.98 and 91,171.44 is: 125,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,827.72 : 213,681.98 = 91,171.44 : x
  2. Step 2: Convert to fraction form
    154,827.72/213,681.98 = 91,171.44/x
  3. Step 3: Cross multiply
    154,827.72x = 213,681.98 × 91,171.44
  4. Step 4: Simplify right side
    154,827.72x = 19,481,693,818.65
  5. Step 5: Solve for x
    x = 19,481,693,818.65/154,827.72
  6. Step 6: Final answer
    x = 125,828.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.