Home / 131,150.34-180,946.44-77,454.36

Finding the Fourth Proportional to 131,150.34, 180,946.44 and 77,454.36

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Solution

The fourth proportional to 131,150.34, 180,946.44 and 77,454.36 is: 106,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,150.34 : 180,946.44 = 77,454.36 : x
  2. Step 2: Convert to fraction form
    131,150.34/180,946.44 = 77,454.36/x
  3. Step 3: Cross multiply
    131,150.34x = 180,946.44 × 77,454.36
  4. Step 4: Simplify right side
    131,150.34x = 14,015,090,704.48
  5. Step 5: Solve for x
    x = 14,015,090,704.48/131,150.34
  6. Step 6: Final answer
    x = 106,862.79

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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.