Home / 144,450.32-216,498.01-81,137.35

Finding the Fourth Proportional to 144,450.32, 216,498.01 and 81,137.35

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Solution

The fourth proportional to 144,450.32, 216,498.01 and 81,137.35 is: 121,606.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,450.32 : 216,498.01 = 81,137.35 : x
  2. Step 2: Convert to fraction form
    144,450.32/216,498.01 = 81,137.35/x
  3. Step 3: Cross multiply
    144,450.32x = 216,498.01 × 81,137.35
  4. Step 4: Simplify right side
    144,450.32x = 17,566,074,405.99
  5. Step 5: Solve for x
    x = 17,566,074,405.99/144,450.32
  6. Step 6: Final answer
    x = 121,606.34

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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.