Home / 121,897.38-168,232.59-70,912.25

Finding the Fourth Proportional to 121,897.38, 168,232.59 and 70,912.25

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Solution

The fourth proportional to 121,897.38, 168,232.59 and 70,912.25 is: 97,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,897.38 : 168,232.59 = 70,912.25 : x
  2. Step 2: Convert to fraction form
    121,897.38/168,232.59 = 70,912.25/x
  3. Step 3: Cross multiply
    121,897.38x = 168,232.59 × 70,912.25
  4. Step 4: Simplify right side
    121,897.38x = 11,929,751,917.08
  5. Step 5: Solve for x
    x = 11,929,751,917.08/121,897.38
  6. Step 6: Final answer
    x = 97,867.18

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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.