Home / 208,379.29-287,563.36-112,885.96

Finding the Fourth Proportional to 208,379.29, 287,563.36 and 112,885.96

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Solution

The fourth proportional to 208,379.29, 287,563.36 and 112,885.96 is: 155,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,379.29 : 287,563.36 = 112,885.96 : x
  2. Step 2: Convert to fraction form
    208,379.29/287,563.36 = 112,885.96/x
  3. Step 3: Cross multiply
    208,379.29x = 287,563.36 × 112,885.96
  4. Step 4: Simplify right side
    208,379.29x = 32,461,864,953.30
  5. Step 5: Solve for x
    x = 32,461,864,953.30/208,379.29
  6. Step 6: Final answer
    x = 155,782.59

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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.