Home / 131,845.53-181,946.87-71,416

Finding the Fourth Proportional to 131,845.53, 181,946.87 and 71,416

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Solution

The fourth proportional to 131,845.53, 181,946.87 and 71,416 is: 98,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,845.53 : 181,946.87 = 71,416 : x
  2. Step 2: Convert to fraction form
    131,845.53/181,946.87 = 71,416/x
  3. Step 3: Cross multiply
    131,845.53x = 181,946.87 × 71,416
  4. Step 4: Simplify right side
    131,845.53x = 12,993,917,667.92
  5. Step 5: Solve for x
    x = 12,993,917,667.92/131,845.53
  6. Step 6: Final answer
    x = 98,554.10

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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.