Home / 133,110.84-183,700.39-72,687.09

Finding the Fourth Proportional to 133,110.84, 183,700.39 and 72,687.09

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Solution

The fourth proportional to 133,110.84, 183,700.39 and 72,687.09 is: 100,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,110.84 : 183,700.39 = 72,687.09 : x
  2. Step 2: Convert to fraction form
    133,110.84/183,700.39 = 72,687.09/x
  3. Step 3: Cross multiply
    133,110.84x = 183,700.39 × 72,687.09
  4. Step 4: Simplify right side
    133,110.84x = 13,352,646,780.97
  5. Step 5: Solve for x
    x = 13,352,646,780.97/133,110.84
  6. Step 6: Final answer
    x = 100,312.24

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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.