Home / 121,212.67-181,571.10-98,803.21

Finding the Fourth Proportional to 121,212.67, 181,571.10 and 98,803.21

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Solution

The fourth proportional to 121,212.67, 181,571.10 and 98,803.21 is: 148,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.67 : 181,571.10 = 98,803.21 : x
  2. Step 2: Convert to fraction form
    121,212.67/181,571.10 = 98,803.21/x
  3. Step 3: Cross multiply
    121,212.67x = 181,571.10 × 98,803.21
  4. Step 4: Simplify right side
    121,212.67x = 17,939,807,523.23
  5. Step 5: Solve for x
    x = 17,939,807,523.23/121,212.67
  6. Step 6: Final answer
    x = 148,002.74

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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.