Home / 131,505.40-197,096.10-89,385.40

Finding the Fourth Proportional to 131,505.40, 197,096.10 and 89,385.40

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Solution

The fourth proportional to 131,505.40, 197,096.10 and 89,385.40 is: 133,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,505.40 : 197,096.10 = 89,385.40 : x
  2. Step 2: Convert to fraction form
    131,505.40/197,096.10 = 89,385.40/x
  3. Step 3: Cross multiply
    131,505.40x = 197,096.10 × 89,385.40
  4. Step 4: Simplify right side
    131,505.40x = 17,617,513,736.94
  5. Step 5: Solve for x
    x = 17,617,513,736.94/131,505.40
  6. Step 6: Final answer
    x = 133,967.99

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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.