Home / 188,220.65-259,744.93-103,343.18

Finding the Fourth Proportional to 188,220.65, 259,744.93 and 103,343.18

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Solution

The fourth proportional to 188,220.65, 259,744.93 and 103,343.18 is: 142,613.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,220.65 : 259,744.93 = 103,343.18 : x
  2. Step 2: Convert to fraction form
    188,220.65/259,744.93 = 103,343.18/x
  3. Step 3: Cross multiply
    188,220.65x = 259,744.93 × 103,343.18
  4. Step 4: Simplify right side
    188,220.65x = 26,842,865,497.99
  5. Step 5: Solve for x
    x = 26,842,865,497.99/188,220.65
  6. Step 6: Final answer
    x = 142,613.82

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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.