Home / 143,136.32-215,733.27-123,384.20

Finding the Fourth Proportional to 143,136.32, 215,733.27 and 123,384.20

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Solution

The fourth proportional to 143,136.32, 215,733.27 and 123,384.20 is: 185,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136.32 : 215,733.27 = 123,384.20 : x
  2. Step 2: Convert to fraction form
    143,136.32/215,733.27 = 123,384.20/x
  3. Step 3: Cross multiply
    143,136.32x = 215,733.27 × 123,384.20
  4. Step 4: Simplify right side
    143,136.32x = 26,618,076,316.36
  5. Step 5: Solve for x
    x = 26,618,076,316.36/143,136.32
  6. Step 6: Final answer
    x = 185,963.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.