Home / 98,646.28-136,145.19-55,634.61

Finding the Fourth Proportional to 98,646.28, 136,145.19 and 55,634.61

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Solution

The fourth proportional to 98,646.28, 136,145.19 and 55,634.61 is: 76,783.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,646.28 : 136,145.19 = 55,634.61 : x
  2. Step 2: Convert to fraction form
    98,646.28/136,145.19 = 55,634.61/x
  3. Step 3: Cross multiply
    98,646.28x = 136,145.19 × 55,634.61
  4. Step 4: Simplify right side
    98,646.28x = 7,574,384,549.03
  5. Step 5: Solve for x
    x = 7,574,384,549.03/98,646.28
  6. Step 6: Final answer
    x = 76,783.28

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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.