Home / 88,194.07-121,640.75-61,015.37

Finding the Fourth Proportional to 88,194.07, 121,640.75 and 61,015.37

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Solution

The fourth proportional to 88,194.07, 121,640.75 and 61,015.37 is: 84,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,194.07 : 121,640.75 = 61,015.37 : x
  2. Step 2: Convert to fraction form
    88,194.07/121,640.75 = 61,015.37/x
  3. Step 3: Cross multiply
    88,194.07x = 121,640.75 × 61,015.37
  4. Step 4: Simplify right side
    88,194.07x = 7,421,955,368.33
  5. Step 5: Solve for x
    x = 7,421,955,368.33/88,194.07
  6. Step 6: Final answer
    x = 84,154.81

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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.