Home / 127,116.30-190,674.45-121,284.30

Finding the Fourth Proportional to 127,116.30, 190,674.45 and 121,284.30

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Solution

The fourth proportional to 127,116.30, 190,674.45 and 121,284.30 is: 181,926.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,116.30 : 190,674.45 = 121,284.30 : x
  2. Step 2: Convert to fraction form
    127,116.30/190,674.45 = 121,284.30/x
  3. Step 3: Cross multiply
    127,116.30x = 190,674.45 × 121,284.30
  4. Step 4: Simplify right side
    127,116.30x = 23,125,817,196.14
  5. Step 5: Solve for x
    x = 23,125,817,196.14/127,116.30
  6. Step 6: Final answer
    x = 181,926.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.