Home / 187,051.08-280,688.40-68,734.38

Finding the Fourth Proportional to 187,051.08, 280,688.40 and 68,734.38

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Solution

The fourth proportional to 187,051.08, 280,688.40 and 68,734.38 is: 103,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,051.08 : 280,688.40 = 68,734.38 : x
  2. Step 2: Convert to fraction form
    187,051.08/280,688.40 = 68,734.38/x
  3. Step 3: Cross multiply
    187,051.08x = 280,688.40 × 68,734.38
  4. Step 4: Simplify right side
    187,051.08x = 19,292,943,147.19
  5. Step 5: Solve for x
    x = 19,292,943,147.19/187,051.08
  6. Step 6: Final answer
    x = 103,142.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.