Home / 154,041.23-212,555.86-86,049.79

Finding the Fourth Proportional to 154,041.23, 212,555.86 and 86,049.79

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Solution

The fourth proportional to 154,041.23, 212,555.86 and 86,049.79 is: 118,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,041.23 : 212,555.86 = 86,049.79 : x
  2. Step 2: Convert to fraction form
    154,041.23/212,555.86 = 86,049.79/x
  3. Step 3: Cross multiply
    154,041.23x = 212,555.86 × 86,049.79
  4. Step 4: Simplify right side
    154,041.23x = 18,290,387,166.84
  5. Step 5: Solve for x
    x = 18,290,387,166.84/154,041.23
  6. Step 6: Final answer
    x = 118,736.96

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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.