Home / 121,386.40-182,087.80-58,220.37

Finding the Fourth Proportional to 121,386.40, 182,087.80 and 58,220.37

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Solution

The fourth proportional to 121,386.40, 182,087.80 and 58,220.37 is: 87,334.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,386.40 : 182,087.80 = 58,220.37 : x
  2. Step 2: Convert to fraction form
    121,386.40/182,087.80 = 58,220.37/x
  3. Step 3: Cross multiply
    121,386.40x = 182,087.80 × 58,220.37
  4. Step 4: Simplify right side
    121,386.40x = 10,601,218,942.94
  5. Step 5: Solve for x
    x = 10,601,218,942.94/121,386.40
  6. Step 6: Final answer
    x = 87,334.49

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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.