Home / 114,985.53-172,478.33-51,731.78

Finding the Fourth Proportional to 114,985.53, 172,478.33 and 51,731.78

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Solution

The fourth proportional to 114,985.53, 172,478.33 and 51,731.78 is: 77,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,985.53 : 172,478.33 = 51,731.78 : x
  2. Step 2: Convert to fraction form
    114,985.53/172,478.33 = 51,731.78/x
  3. Step 3: Cross multiply
    114,985.53x = 172,478.33 × 51,731.78
  4. Step 4: Simplify right side
    114,985.53x = 8,922,609,901.28
  5. Step 5: Solve for x
    x = 8,922,609,901.28/114,985.53
  6. Step 6: Final answer
    x = 77,597.68

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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.