Home / 190,927.92-286,156.80-78,538.08

Finding the Fourth Proportional to 190,927.92, 286,156.80 and 78,538.08

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Solution

The fourth proportional to 190,927.92, 286,156.80 and 78,538.08 is: 117,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,927.92 : 286,156.80 = 78,538.08 : x
  2. Step 2: Convert to fraction form
    190,927.92/286,156.80 = 78,538.08/x
  3. Step 3: Cross multiply
    190,927.92x = 286,156.80 × 78,538.08
  4. Step 4: Simplify right side
    190,927.92x = 22,474,205,650.94
  5. Step 5: Solve for x
    x = 22,474,205,650.94/190,927.92
  6. Step 6: Final answer
    x = 117,710.42

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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.