Home / 129,263.58-178,386.35-75,550.86

Finding the Fourth Proportional to 129,263.58, 178,386.35 and 75,550.86

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Solution

The fourth proportional to 129,263.58, 178,386.35 and 75,550.86 is: 104,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,263.58 : 178,386.35 = 75,550.86 : x
  2. Step 2: Convert to fraction form
    129,263.58/178,386.35 = 75,550.86/x
  3. Step 3: Cross multiply
    129,263.58x = 178,386.35 × 75,550.86
  4. Step 4: Simplify right side
    129,263.58x = 13,477,241,777.01
  5. Step 5: Solve for x
    x = 13,477,241,777.01/129,263.58
  6. Step 6: Final answer
    x = 104,261.71

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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.