Home / 154,835.01-213,674.76-86,867.10

Finding the Fourth Proportional to 154,835.01, 213,674.76 and 86,867.10

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Solution

The fourth proportional to 154,835.01, 213,674.76 and 86,867.10 is: 119,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,835.01 : 213,674.76 = 86,867.10 : x
  2. Step 2: Convert to fraction form
    154,835.01/213,674.76 = 86,867.10/x
  3. Step 3: Cross multiply
    154,835.01x = 213,674.76 × 86,867.10
  4. Step 4: Simplify right side
    154,835.01x = 18,561,306,744.40
  5. Step 5: Solve for x
    x = 18,561,306,744.40/154,835.01
  6. Step 6: Final answer
    x = 119,877.97

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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.