Home / 121,918.05-168,259.55-70,236.93

Finding the Fourth Proportional to 121,918.05, 168,259.55 and 70,236.93

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Solution

The fourth proportional to 121,918.05, 168,259.55 and 70,236.93 is: 96,934.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,918.05 : 168,259.55 = 70,236.93 : x
  2. Step 2: Convert to fraction form
    121,918.05/168,259.55 = 70,236.93/x
  3. Step 3: Cross multiply
    121,918.05x = 168,259.55 × 70,236.93
  4. Step 4: Simplify right side
    121,918.05x = 11,818,034,235.18
  5. Step 5: Solve for x
    x = 11,818,034,235.18/121,918.05
  6. Step 6: Final answer
    x = 96,934.25

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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.