Home / 208,583.91-287,739.81-131,973.84

Finding the Fourth Proportional to 208,583.91, 287,739.81 and 131,973.84

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Solution

The fourth proportional to 208,583.91, 287,739.81 and 131,973.84 is: 182,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,583.91 : 287,739.81 = 131,973.84 : x
  2. Step 2: Convert to fraction form
    208,583.91/287,739.81 = 131,973.84/x
  3. Step 3: Cross multiply
    208,583.91x = 287,739.81 × 131,973.84
  4. Step 4: Simplify right side
    208,583.91x = 37,974,127,646.57
  5. Step 5: Solve for x
    x = 37,974,127,646.57/208,583.91
  6. Step 6: Final answer
    x = 182,056.84

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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.