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Finding the Fourth Proportional to 187,098.69, 280,519.93 and 67,152.98

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Solution

The fourth proportional to 187,098.69, 280,519.93 and 67,152.98 is: 100,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,098.69 : 280,519.93 = 67,152.98 : x
  2. Step 2: Convert to fraction form
    187,098.69/280,519.93 = 67,152.98/x
  3. Step 3: Cross multiply
    187,098.69x = 280,519.93 × 67,152.98
  4. Step 4: Simplify right side
    187,098.69x = 18,837,747,846.29
  5. Step 5: Solve for x
    x = 18,837,747,846.29/187,098.69
  6. Step 6: Final answer
    x = 100,683.48

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1.5x scale

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.