Home / 171,809.28-257,721.60-47,151.36

Finding the Fourth Proportional to 171,809.28, 257,721.60 and 47,151.36

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Solution

The fourth proportional to 171,809.28, 257,721.60 and 47,151.36 is: 70,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,809.28 : 257,721.60 = 47,151.36 : x
  2. Step 2: Convert to fraction form
    171,809.28/257,721.60 = 47,151.36/x
  3. Step 3: Cross multiply
    171,809.28x = 257,721.60 × 47,151.36
  4. Step 4: Simplify right side
    171,809.28x = 12,151,923,941.38
  5. Step 5: Solve for x
    x = 12,151,923,941.38/171,809.28
  6. Step 6: Final answer
    x = 70,729.15

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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.