Home / 144,032.20-198,800.06-87,490.96

Finding the Fourth Proportional to 144,032.20, 198,800.06 and 87,490.96

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Solution

The fourth proportional to 144,032.20, 198,800.06 and 87,490.96 is: 120,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,032.20 : 198,800.06 = 87,490.96 : x
  2. Step 2: Convert to fraction form
    144,032.20/198,800.06 = 87,490.96/x
  3. Step 3: Cross multiply
    144,032.20x = 198,800.06 × 87,490.96
  4. Step 4: Simplify right side
    144,032.20x = 17,393,208,097.46
  5. Step 5: Solve for x
    x = 17,393,208,097.46/144,032.20
  6. Step 6: Final answer
    x = 120,759.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.