Home / 256,987.06-385,360.63-96,939.68

Finding the Fourth Proportional to 256,987.06, 385,360.63 and 96,939.68

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Solution

The fourth proportional to 256,987.06, 385,360.63 and 96,939.68 is: 145,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,987.06 : 385,360.63 = 96,939.68 : x
  2. Step 2: Convert to fraction form
    256,987.06/385,360.63 = 96,939.68/x
  3. Step 3: Cross multiply
    256,987.06x = 385,360.63 × 96,939.68
  4. Step 4: Simplify right side
    256,987.06x = 37,356,733,987.65
  5. Step 5: Solve for x
    x = 37,356,733,987.65/256,987.06
  6. Step 6: Final answer
    x = 145,364.26

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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.