Home / 131,152.36-180,990.82-71,537.64

Finding the Fourth Proportional to 131,152.36, 180,990.82 and 71,537.64

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Solution

The fourth proportional to 131,152.36, 180,990.82 and 71,537.64 is: 98,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,152.36 : 180,990.82 = 71,537.64 : x
  2. Step 2: Convert to fraction form
    131,152.36/180,990.82 = 71,537.64/x
  3. Step 3: Cross multiply
    131,152.36x = 180,990.82 × 71,537.64
  4. Step 4: Simplify right side
    131,152.36x = 12,947,656,124.46
  5. Step 5: Solve for x
    x = 12,947,656,124.46/131,152.36
  6. Step 6: Final answer
    x = 98,722.25

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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.