Home / 128,654.06-177,388.18-110,718.23

Finding the Fourth Proportional to 128,654.06, 177,388.18 and 110,718.23

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Solution

The fourth proportional to 128,654.06, 177,388.18 and 110,718.23 is: 152,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,654.06 : 177,388.18 = 110,718.23 : x
  2. Step 2: Convert to fraction form
    128,654.06/177,388.18 = 110,718.23/x
  3. Step 3: Cross multiply
    128,654.06x = 177,388.18 × 110,718.23
  4. Step 4: Simplify right side
    128,654.06x = 19,640,104,148.78
  5. Step 5: Solve for x
    x = 19,640,104,148.78/128,654.06
  6. Step 6: Final answer
    x = 152,658.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.