Home / 126,330.81-174,320.82-69,741.78

Finding the Fourth Proportional to 126,330.81, 174,320.82 and 69,741.78

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Solution

The fourth proportional to 126,330.81, 174,320.82 and 69,741.78 is: 96,234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,330.81 : 174,320.82 = 69,741.78 : x
  2. Step 2: Convert to fraction form
    126,330.81/174,320.82 = 69,741.78/x
  3. Step 3: Cross multiply
    126,330.81x = 174,320.82 × 69,741.78
  4. Step 4: Simplify right side
    126,330.81x = 12,157,444,277.86
  5. Step 5: Solve for x
    x = 12,157,444,277.86/126,330.81
  6. Step 6: Final answer
    x = 96,234.99

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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.