Home / 131,905.94-182,021.54-84,154.20

Finding the Fourth Proportional to 131,905.94, 182,021.54 and 84,154.20

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Solution

The fourth proportional to 131,905.94, 182,021.54 and 84,154.20 is: 116,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,905.94 : 182,021.54 = 84,154.20 : x
  2. Step 2: Convert to fraction form
    131,905.94/182,021.54 = 84,154.20/x
  3. Step 3: Cross multiply
    131,905.94x = 182,021.54 × 84,154.20
  4. Step 4: Simplify right side
    131,905.94x = 15,317,877,081.47
  5. Step 5: Solve for x
    x = 15,317,877,081.47/131,905.94
  6. Step 6: Final answer
    x = 116,127.27

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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.