Home / 134,391.78-201,156.66-89,309.70

Finding the Fourth Proportional to 134,391.78, 201,156.66 and 89,309.70

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Solution

The fourth proportional to 134,391.78, 201,156.66 and 89,309.70 is: 133,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,391.78 : 201,156.66 = 89,309.70 : x
  2. Step 2: Convert to fraction form
    134,391.78/201,156.66 = 89,309.70/x
  3. Step 3: Cross multiply
    134,391.78x = 201,156.66 × 89,309.70
  4. Step 4: Simplify right side
    134,391.78x = 17,965,240,957.60
  5. Step 5: Solve for x
    x = 17,965,240,957.60/134,391.78
  6. Step 6: Final answer
    x = 133,678.12

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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.