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Finding the Fourth Proportional to 144,608.87, 216,630.81 and 99,622.28

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Solution

The fourth proportional to 144,608.87, 216,630.81 and 99,622.28 is: 149,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,608.87 : 216,630.81 = 99,622.28 : x
  2. Step 2: Convert to fraction form
    144,608.87/216,630.81 = 99,622.28/x
  3. Step 3: Cross multiply
    144,608.87x = 216,630.81 × 99,622.28
  4. Step 4: Simplify right side
    144,608.87x = 21,581,254,127.29
  5. Step 5: Solve for x
    x = 21,581,254,127.29/144,608.87
  6. Step 6: Final answer
    x = 149,238.80

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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.