Home / 121,271.41-166,142.60-116,726.08

Finding the Fourth Proportional to 121,271.41, 166,142.60 and 116,726.08

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Solution

The fourth proportional to 121,271.41, 166,142.60 and 116,726.08 is: 159,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,271.41 : 166,142.60 = 116,726.08 : x
  2. Step 2: Convert to fraction form
    121,271.41/166,142.60 = 116,726.08/x
  3. Step 3: Cross multiply
    121,271.41x = 166,142.60 × 116,726.08
  4. Step 4: Simplify right side
    121,271.41x = 19,393,174,419.01
  5. Step 5: Solve for x
    x = 19,393,174,419.01/121,271.41
  6. Step 6: Final answer
    x = 159,915.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.