Home / 210,927.65-316,424.37-68,739.84

Finding the Fourth Proportional to 210,927.65, 316,424.37 and 68,739.84

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Solution

The fourth proportional to 210,927.65, 316,424.37 and 68,739.84 is: 103,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,927.65 : 316,424.37 = 68,739.84 : x
  2. Step 2: Convert to fraction form
    210,927.65/316,424.37 = 68,739.84/x
  3. Step 3: Cross multiply
    210,927.65x = 316,424.37 × 68,739.84
  4. Step 4: Simplify right side
    210,927.65x = 21,750,960,823.68
  5. Step 5: Solve for x
    x = 21,750,960,823.68/210,927.65
  6. Step 6: Final answer
    x = 103,120.48

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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.