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Finding the Fourth Proportional to 144,005.40, 216,008.10 and 73,891.80

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Solution

The fourth proportional to 144,005.40, 216,008.10 and 73,891.80 is: 110,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.40 : 216,008.10 = 73,891.80 : x
  2. Step 2: Convert to fraction form
    144,005.40/216,008.10 = 73,891.80/x
  3. Step 3: Cross multiply
    144,005.40x = 216,008.10 × 73,891.80
  4. Step 4: Simplify right side
    144,005.40x = 15,961,227,323.58
  5. Step 5: Solve for x
    x = 15,961,227,323.58/144,005.40
  6. Step 6: Final answer
    x = 110,837.70

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1.5x scale

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.