Home / 98,939.88-136,543.68-55,904.46

Finding the Fourth Proportional to 98,939.88, 136,543.68 and 55,904.46

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Solution

The fourth proportional to 98,939.88, 136,543.68 and 55,904.46 is: 77,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,939.88 : 136,543.68 = 55,904.46 : x
  2. Step 2: Convert to fraction form
    98,939.88/136,543.68 = 55,904.46/x
  3. Step 3: Cross multiply
    98,939.88x = 136,543.68 × 55,904.46
  4. Step 4: Simplify right side
    98,939.88x = 7,633,400,696.81
  5. Step 5: Solve for x
    x = 7,633,400,696.81/98,939.88
  6. Step 6: Final answer
    x = 77,151.91

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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.