Home / 149,257.45-205,817.43-115,271.47

Finding the Fourth Proportional to 149,257.45, 205,817.43 and 115,271.47

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Solution

The fourth proportional to 149,257.45, 205,817.43 and 115,271.47 is: 158,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,257.45 : 205,817.43 = 115,271.47 : x
  2. Step 2: Convert to fraction form
    149,257.45/205,817.43 = 115,271.47/x
  3. Step 3: Cross multiply
    149,257.45x = 205,817.43 × 115,271.47
  4. Step 4: Simplify right side
    149,257.45x = 23,724,877,707.72
  5. Step 5: Solve for x
    x = 23,724,877,707.72/149,257.45
  6. Step 6: Final answer
    x = 158,952.72

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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.