Home / 158,126.14-218,212.26-86,505.34

Finding the Fourth Proportional to 158,126.14, 218,212.26 and 86,505.34

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Solution

The fourth proportional to 158,126.14, 218,212.26 and 86,505.34 is: 119,376.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,126.14 : 218,212.26 = 86,505.34 : x
  2. Step 2: Convert to fraction form
    158,126.14/218,212.26 = 86,505.34/x
  3. Step 3: Cross multiply
    158,126.14x = 218,212.26 × 86,505.34
  4. Step 4: Simplify right side
    158,126.14x = 18,876,525,743.47
  5. Step 5: Solve for x
    x = 18,876,525,743.47/158,126.14
  6. Step 6: Final answer
    x = 119,376.38

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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.