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Finding the Fourth Proportional to 144,097.60, 216,274.40 and 84,859.20

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Solution

The fourth proportional to 144,097.60, 216,274.40 and 84,859.20 is: 127,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,097.60 : 216,274.40 = 84,859.20 : x
  2. Step 2: Convert to fraction form
    144,097.60/216,274.40 = 84,859.20/x
  3. Step 3: Cross multiply
    144,097.60x = 216,274.40 × 84,859.20
  4. Step 4: Simplify right side
    144,097.60x = 18,352,872,564.48
  5. Step 5: Solve for x
    x = 18,352,872,564.48/144,097.60
  6. Step 6: Final answer
    x = 127,364.18

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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.