Home / 98,728.35-136,244.26-55,708.16

Finding the Fourth Proportional to 98,728.35, 136,244.26 and 55,708.16

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Solution

The fourth proportional to 98,728.35, 136,244.26 and 55,708.16 is: 76,876.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,728.35 : 136,244.26 = 55,708.16 : x
  2. Step 2: Convert to fraction form
    98,728.35/136,244.26 = 55,708.16/x
  3. Step 3: Cross multiply
    98,728.35x = 136,244.26 × 55,708.16
  4. Step 4: Simplify right side
    98,728.35x = 7,589,917,035.16
  5. Step 5: Solve for x
    x = 7,589,917,035.16/98,728.35
  6. Step 6: Final answer
    x = 76,876.77

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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.