Home / 121,273.57-166,145.60-116,728.23

Finding the Fourth Proportional to 121,273.57, 166,145.60 and 116,728.23

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Solution

The fourth proportional to 121,273.57, 166,145.60 and 116,728.23 is: 159,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,273.57 : 166,145.60 = 116,728.23 : x
  2. Step 2: Convert to fraction form
    121,273.57/166,145.60 = 116,728.23/x
  3. Step 3: Cross multiply
    121,273.57x = 166,145.60 × 116,728.23
  4. Step 4: Simplify right side
    121,273.57x = 19,393,881,810.29
  5. Step 5: Solve for x
    x = 19,393,881,810.29/121,273.57
  6. Step 6: Final answer
    x = 159,918.45

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1.5x scale

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.