Home / 131,237.10-181,107.14-71,621.10

Finding the Fourth Proportional to 131,237.10, 181,107.14 and 71,621.10

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Solution

The fourth proportional to 131,237.10, 181,107.14 and 71,621.10 is: 98,837.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,237.10 : 181,107.14 = 71,621.10 : x
  2. Step 2: Convert to fraction form
    131,237.10/181,107.14 = 71,621.10/x
  3. Step 3: Cross multiply
    131,237.10x = 181,107.14 × 71,621.10
  4. Step 4: Simplify right side
    131,237.10x = 12,971,092,584.65
  5. Step 5: Solve for x
    x = 12,971,092,584.65/131,237.10
  6. Step 6: Final answer
    x = 98,837.09

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1.5x scale

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.