Home / 121,136.40-181,631.70-62,087.40

Finding the Fourth Proportional to 121,136.40, 181,631.70 and 62,087.40

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Solution

The fourth proportional to 121,136.40, 181,631.70 and 62,087.40 is: 93,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,136.40 : 181,631.70 = 62,087.40 : x
  2. Step 2: Convert to fraction form
    121,136.40/181,631.70 = 62,087.40/x
  3. Step 3: Cross multiply
    121,136.40x = 181,631.70 × 62,087.40
  4. Step 4: Simplify right side
    121,136.40x = 11,277,040,010.58
  5. Step 5: Solve for x
    x = 11,277,040,010.58/121,136.40
  6. Step 6: Final answer
    x = 93,093.74

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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.