Home / 187,300.72-280,908.90-54,151.36

Finding the Fourth Proportional to 187,300.72, 280,908.90 and 54,151.36

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Solution

The fourth proportional to 187,300.72, 280,908.90 and 54,151.36 is: 81,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,300.72 : 280,908.90 = 54,151.36 : x
  2. Step 2: Convert to fraction form
    187,300.72/280,908.90 = 54,151.36/x
  3. Step 3: Cross multiply
    187,300.72x = 280,908.90 × 54,151.36
  4. Step 4: Simplify right side
    187,300.72x = 15,211,598,971.10
  5. Step 5: Solve for x
    x = 15,211,598,971.10/187,300.72
  6. Step 6: Final answer
    x = 81,214.85

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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.