Home / 112,991.42-155,927.73-62,005

Finding the Fourth Proportional to 112,991.42, 155,927.73 and 62,005

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Solution

The fourth proportional to 112,991.42, 155,927.73 and 62,005 is: 85,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,991.42 : 155,927.73 = 62,005 : x
  2. Step 2: Convert to fraction form
    112,991.42/155,927.73 = 62,005/x
  3. Step 3: Cross multiply
    112,991.42x = 155,927.73 × 62,005
  4. Step 4: Simplify right side
    112,991.42x = 9,668,298,898.65
  5. Step 5: Solve for x
    x = 9,668,298,898.65/112,991.42
  6. Step 6: Final answer
    x = 85,566.66

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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.