Home / 132,972.42-183,483.78-76,383.80

Finding the Fourth Proportional to 132,972.42, 183,483.78 and 76,383.80

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Solution

The fourth proportional to 132,972.42, 183,483.78 and 76,383.80 is: 105,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,972.42 : 183,483.78 = 76,383.80 : x
  2. Step 2: Convert to fraction form
    132,972.42/183,483.78 = 76,383.80/x
  3. Step 3: Cross multiply
    132,972.42x = 183,483.78 × 76,383.80
  4. Step 4: Simplify right side
    132,972.42x = 14,015,187,437.35
  5. Step 5: Solve for x
    x = 14,015,187,437.35/132,972.42
  6. Step 6: Final answer
    x = 105,399.21

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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.