Home / 144,004.16-216,053.64-68,135.31

Finding the Fourth Proportional to 144,004.16, 216,053.64 and 68,135.31

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Solution

The fourth proportional to 144,004.16, 216,053.64 and 68,135.31 is: 102,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,004.16 : 216,053.64 = 68,135.31 : x
  2. Step 2: Convert to fraction form
    144,004.16/216,053.64 = 68,135.31/x
  3. Step 3: Cross multiply
    144,004.16x = 216,053.64 × 68,135.31
  4. Step 4: Simplify right side
    144,004.16x = 14,720,881,738.03
  5. Step 5: Solve for x
    x = 14,720,881,738.03/144,004.16
  6. Step 6: Final answer
    x = 102,225.39

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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.