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Finding the Fourth Proportional to 185,457.93, 255,905.01 and 103,785.80

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Solution

The fourth proportional to 185,457.93, 255,905.01 and 103,785.80 is: 143,209.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,457.93 : 255,905.01 = 103,785.80 : x
  2. Step 2: Convert to fraction form
    185,457.93/255,905.01 = 103,785.80/x
  3. Step 3: Cross multiply
    185,457.93x = 255,905.01 × 103,785.80
  4. Step 4: Simplify right side
    185,457.93x = 26,559,304,907.33
  5. Step 5: Solve for x
    x = 26,559,304,907.33/185,457.93
  6. Step 6: Final answer
    x = 143,209.32

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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.