Home / 210,936.04-316,454.82-86,277.40

Finding the Fourth Proportional to 210,936.04, 316,454.82 and 86,277.40

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Solution

The fourth proportional to 210,936.04, 316,454.82 and 86,277.40 is: 129,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,936.04 : 316,454.82 = 86,277.40 : x
  2. Step 2: Convert to fraction form
    210,936.04/316,454.82 = 86,277.40/x
  3. Step 3: Cross multiply
    210,936.04x = 316,454.82 × 86,277.40
  4. Step 4: Simplify right side
    210,936.04x = 27,302,899,087.07
  5. Step 5: Solve for x
    x = 27,302,899,087.07/210,936.04
  6. Step 6: Final answer
    x = 129,436.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.