Home / 154,359.84-212,812.38-111,303.30

Finding the Fourth Proportional to 154,359.84, 212,812.38 and 111,303.30

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Solution

The fourth proportional to 154,359.84, 212,812.38 and 111,303.30 is: 153,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,359.84 : 212,812.38 = 111,303.30 : x
  2. Step 2: Convert to fraction form
    154,359.84/212,812.38 = 111,303.30/x
  3. Step 3: Cross multiply
    154,359.84x = 212,812.38 × 111,303.30
  4. Step 4: Simplify right side
    154,359.84x = 23,686,720,174.85
  5. Step 5: Solve for x
    x = 23,686,720,174.85/154,359.84
  6. Step 6: Final answer
    x = 153,451.31

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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.