Home / 101,684.40-140,322.77-55,743.72

Finding the Fourth Proportional to 101,684.40, 140,322.77 and 55,743.72

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Solution

The fourth proportional to 101,684.40, 140,322.77 and 55,743.72 is: 76,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,684.40 : 140,322.77 = 55,743.72 : x
  2. Step 2: Convert to fraction form
    101,684.40/140,322.77 = 55,743.72/x
  3. Step 3: Cross multiply
    101,684.40x = 140,322.77 × 55,743.72
  4. Step 4: Simplify right side
    101,684.40x = 7,822,112,921.79
  5. Step 5: Solve for x
    x = 7,822,112,921.79/101,684.40
  6. Step 6: Final answer
    x = 76,925.40

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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.