Home / 132,000.78-182,161.70-71,571.24

Finding the Fourth Proportional to 132,000.78, 182,161.70 and 71,571.24

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Solution

The fourth proportional to 132,000.78, 182,161.70 and 71,571.24 is: 98,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,000.78 : 182,161.70 = 71,571.24 : x
  2. Step 2: Convert to fraction form
    132,000.78/182,161.70 = 71,571.24/x
  3. Step 3: Cross multiply
    132,000.78x = 182,161.70 × 71,571.24
  4. Step 4: Simplify right side
    132,000.78x = 13,037,538,749.51
  5. Step 5: Solve for x
    x = 13,037,538,749.51/132,000.78
  6. Step 6: Final answer
    x = 98,768.65

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1.5x scale

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.