Home / 208,487.07-287,606.25-131,877.09

Finding the Fourth Proportional to 208,487.07, 287,606.25 and 131,877.09

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Solution

The fourth proportional to 208,487.07, 287,606.25 and 131,877.09 is: 181,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,487.07 : 287,606.25 = 131,877.09 : x
  2. Step 2: Convert to fraction form
    208,487.07/287,606.25 = 131,877.09/x
  3. Step 3: Cross multiply
    208,487.07x = 287,606.25 × 131,877.09
  4. Step 4: Simplify right side
    208,487.07x = 37,928,675,315.81
  5. Step 5: Solve for x
    x = 37,928,675,315.81/208,487.07
  6. Step 6: Final answer
    x = 181,923.39

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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.