Home / 131,838.44-181,935.60-71,407.58

Finding the Fourth Proportional to 131,838.44, 181,935.60 and 71,407.58

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Solution

The fourth proportional to 131,838.44, 181,935.60 and 71,407.58 is: 98,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,838.44 : 181,935.60 = 71,407.58 : x
  2. Step 2: Convert to fraction form
    131,838.44/181,935.60 = 71,407.58/x
  3. Step 3: Cross multiply
    131,838.44x = 181,935.60 × 71,407.58
  4. Step 4: Simplify right side
    131,838.44x = 12,991,580,911.85
  5. Step 5: Solve for x
    x = 12,991,580,911.85/131,838.44
  6. Step 6: Final answer
    x = 98,541.68

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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.