Home / 144,780.19-216,930.09-102,450.40

Finding the Fourth Proportional to 144,780.19, 216,930.09 and 102,450.40

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Solution

The fourth proportional to 144,780.19, 216,930.09 and 102,450.40 is: 153,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,780.19 : 216,930.09 = 102,450.40 : x
  2. Step 2: Convert to fraction form
    144,780.19/216,930.09 = 102,450.40/x
  3. Step 3: Cross multiply
    144,780.19x = 216,930.09 × 102,450.40
  4. Step 4: Simplify right side
    144,780.19x = 22,224,574,492.54
  5. Step 5: Solve for x
    x = 22,224,574,492.54/144,780.19
  6. Step 6: Final answer
    x = 153,505.63

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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.