Home / 144,819.83-216,946.95-68,810.21

Finding the Fourth Proportional to 144,819.83, 216,946.95 and 68,810.21

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Solution

The fourth proportional to 144,819.83, 216,946.95 and 68,810.21 is: 103,080.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,819.83 : 216,946.95 = 68,810.21 : x
  2. Step 2: Convert to fraction form
    144,819.83/216,946.95 = 68,810.21/x
  3. Step 3: Cross multiply
    144,819.83x = 216,946.95 × 68,810.21
  4. Step 4: Simplify right side
    144,819.83x = 14,928,164,103.62
  5. Step 5: Solve for x
    x = 14,928,164,103.62/144,819.83
  6. Step 6: Final answer
    x = 103,080.94

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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.