Home / 154,808.23-213,437.59-100,264.03

Finding the Fourth Proportional to 154,808.23, 213,437.59 and 100,264.03

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Solution

The fourth proportional to 154,808.23, 213,437.59 and 100,264.03 is: 138,236.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,808.23 : 213,437.59 = 100,264.03 : x
  2. Step 2: Convert to fraction form
    154,808.23/213,437.59 = 100,264.03/x
  3. Step 3: Cross multiply
    154,808.23x = 213,437.59 × 100,264.03
  4. Step 4: Simplify right side
    154,808.23x = 21,400,112,926.89
  5. Step 5: Solve for x
    x = 21,400,112,926.89/154,808.23
  6. Step 6: Final answer
    x = 138,236.27

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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.