Home / 158,192.32-218,284.32-91,111.36

Finding the Fourth Proportional to 158,192.32, 218,284.32 and 91,111.36

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Solution

The fourth proportional to 158,192.32, 218,284.32 and 91,111.36 is: 125,721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,192.32 : 218,284.32 = 91,111.36 : x
  2. Step 2: Convert to fraction form
    158,192.32/218,284.32 = 91,111.36/x
  3. Step 3: Cross multiply
    158,192.32x = 218,284.32 × 91,111.36
  4. Step 4: Simplify right side
    158,192.32x = 19,888,181,261.88
  5. Step 5: Solve for x
    x = 19,888,181,261.88/158,192.32
  6. Step 6: Final answer
    x = 125,721.53

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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.