Home / 155,930.70-233,896.05-111,315.90

Finding the Fourth Proportional to 155,930.70, 233,896.05 and 111,315.90

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Solution

The fourth proportional to 155,930.70, 233,896.05 and 111,315.90 is: 166,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,930.70 : 233,896.05 = 111,315.90 : x
  2. Step 2: Convert to fraction form
    155,930.70/233,896.05 = 111,315.90/x
  3. Step 3: Cross multiply
    155,930.70x = 233,896.05 × 111,315.90
  4. Step 4: Simplify right side
    155,930.70x = 26,036,349,312.20
  5. Step 5: Solve for x
    x = 26,036,349,312.20/155,930.70
  6. Step 6: Final answer
    x = 166,973.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.