Home / 154,672.47-213,437.43-86,677.83

Finding the Fourth Proportional to 154,672.47, 213,437.43 and 86,677.83

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Solution

The fourth proportional to 154,672.47, 213,437.43 and 86,677.83 is: 119,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,672.47 : 213,437.43 = 86,677.83 : x
  2. Step 2: Convert to fraction form
    154,672.47/213,437.43 = 86,677.83/x
  3. Step 3: Cross multiply
    154,672.47x = 213,437.43 × 86,677.83
  4. Step 4: Simplify right side
    154,672.47x = 18,500,293,273.18
  5. Step 5: Solve for x
    x = 18,500,293,273.18/154,672.47
  6. Step 6: Final answer
    x = 119,609.48

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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.