Home / 127,981.32-176,670.84-82,681.44

Finding the Fourth Proportional to 127,981.32, 176,670.84 and 82,681.44

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Solution

The fourth proportional to 127,981.32, 176,670.84 and 82,681.44 is: 114,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,981.32 : 176,670.84 = 82,681.44 : x
  2. Step 2: Convert to fraction form
    127,981.32/176,670.84 = 82,681.44/x
  3. Step 3: Cross multiply
    127,981.32x = 176,670.84 × 82,681.44
  4. Step 4: Simplify right side
    127,981.32x = 14,607,399,457.21
  5. Step 5: Solve for x
    x = 14,607,399,457.21/127,981.32
  6. Step 6: Final answer
    x = 114,136.97

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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.