Home / 208,031.87-287,083.01-112,537.73

Finding the Fourth Proportional to 208,031.87, 287,083.01 and 112,537.73

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Solution

The fourth proportional to 208,031.87, 287,083.01 and 112,537.73 is: 155,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,031.87 : 287,083.01 = 112,537.73 : x
  2. Step 2: Convert to fraction form
    208,031.87/287,083.01 = 112,537.73/x
  3. Step 3: Cross multiply
    208,031.87x = 287,083.01 × 112,537.73
  4. Step 4: Simplify right side
    208,031.87x = 32,307,670,421.99
  5. Step 5: Solve for x
    x = 32,307,670,421.99/208,031.87
  6. Step 6: Final answer
    x = 155,301.54

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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.