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Finding the Fourth Proportional to 144,962.01, 200,000.41 and 81,287.51

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Solution

The fourth proportional to 144,962.01, 200,000.41 and 81,287.51 is: 112,150.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,962.01 : 200,000.41 = 81,287.51 : x
  2. Step 2: Convert to fraction form
    144,962.01/200,000.41 = 81,287.51/x
  3. Step 3: Cross multiply
    144,962.01x = 200,000.41 × 81,287.51
  4. Step 4: Simplify right side
    144,962.01x = 16,257,534,124.66
  5. Step 5: Solve for x
    x = 16,257,534,124.66/144,962.01
  6. Step 6: Final answer
    x = 112,150.31

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1.5x scale

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.