Home / 149,078.07-205,726.05-111,007.89

Finding the Fourth Proportional to 149,078.07, 205,726.05 and 111,007.89

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Solution

The fourth proportional to 149,078.07, 205,726.05 and 111,007.89 is: 153,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,078.07 : 205,726.05 = 111,007.89 : x
  2. Step 2: Convert to fraction form
    149,078.07/205,726.05 = 111,007.89/x
  3. Step 3: Cross multiply
    149,078.07x = 205,726.05 × 111,007.89
  4. Step 4: Simplify right side
    149,078.07x = 22,837,214,728.53
  5. Step 5: Solve for x
    x = 22,837,214,728.53/149,078.07
  6. Step 6: Final answer
    x = 153,189.63

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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.