Home / 131,795.07-181,878.71-71,367.09

Finding the Fourth Proportional to 131,795.07, 181,878.71 and 71,367.09

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Solution

The fourth proportional to 131,795.07, 181,878.71 and 71,367.09 is: 98,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,795.07 : 181,878.71 = 71,367.09 : x
  2. Step 2: Convert to fraction form
    131,795.07/181,878.71 = 71,367.09/x
  3. Step 3: Cross multiply
    131,795.07x = 181,878.71 × 71,367.09
  4. Step 4: Simplify right side
    131,795.07x = 12,980,154,265.65
  5. Step 5: Solve for x
    x = 12,980,154,265.65/131,795.07
  6. Step 6: Final answer
    x = 98,487.40

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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.