Home / 144,721.88-216,708.93-99,881.60

Finding the Fourth Proportional to 144,721.88, 216,708.93 and 99,881.60

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Solution

The fourth proportional to 144,721.88, 216,708.93 and 99,881.60 is: 149,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,721.88 : 216,708.93 = 99,881.60 : x
  2. Step 2: Convert to fraction form
    144,721.88/216,708.93 = 99,881.60/x
  3. Step 3: Cross multiply
    144,721.88x = 216,708.93 × 99,881.60
  4. Step 4: Simplify right side
    144,721.88x = 21,645,233,579.14
  5. Step 5: Solve for x
    x = 21,645,233,579.14/144,721.88
  6. Step 6: Final answer
    x = 149,564.35

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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.