Home / 154,048.27-212,582.69-86,065.75

Finding the Fourth Proportional to 154,048.27, 212,582.69 and 86,065.75

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Solution

The fourth proportional to 154,048.27, 212,582.69 and 86,065.75 is: 118,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,048.27 : 212,582.69 = 86,065.75 : x
  2. Step 2: Convert to fraction form
    154,048.27/212,582.69 = 86,065.75/x
  3. Step 3: Cross multiply
    154,048.27x = 212,582.69 × 86,065.75
  4. Step 4: Simplify right side
    154,048.27x = 18,296,088,651.87
  5. Step 5: Solve for x
    x = 18,296,088,651.87/154,048.27
  6. Step 6: Final answer
    x = 118,768.55

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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.