Home / 121,376.27-181,938.08-67,989.98

Finding the Fourth Proportional to 121,376.27, 181,938.08 and 67,989.98

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Solution

The fourth proportional to 121,376.27, 181,938.08 and 67,989.98 is: 101,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,376.27 : 181,938.08 = 67,989.98 : x
  2. Step 2: Convert to fraction form
    121,376.27/181,938.08 = 67,989.98/x
  3. Step 3: Cross multiply
    121,376.27x = 181,938.08 × 67,989.98
  4. Step 4: Simplify right side
    121,376.27x = 12,369,967,045.26
  5. Step 5: Solve for x
    x = 12,369,967,045.26/121,376.27
  6. Step 6: Final answer
    x = 101,914.21

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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.