Home / 151,045.96-208,440-82,133.92

Finding the Fourth Proportional to 151,045.96, 208,440 and 82,133.92

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Solution

The fourth proportional to 151,045.96, 208,440 and 82,133.92 is: 113,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,045.96 : 208,440 = 82,133.92 : x
  2. Step 2: Convert to fraction form
    151,045.96/208,440 = 82,133.92/x
  3. Step 3: Cross multiply
    151,045.96x = 208,440 × 82,133.92
  4. Step 4: Simplify right side
    151,045.96x = 17,119,994,284.80
  5. Step 5: Solve for x
    x = 17,119,994,284.80/151,045.96
  6. Step 6: Final answer
    x = 113,342.95

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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.