Home / 114,979.05-172,437.12-72,795.60

Finding the Fourth Proportional to 114,979.05, 172,437.12 and 72,795.60

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Solution

The fourth proportional to 114,979.05, 172,437.12 and 72,795.60 is: 109,173.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,979.05 : 172,437.12 = 72,795.60 : x
  2. Step 2: Convert to fraction form
    114,979.05/172,437.12 = 72,795.60/x
  3. Step 3: Cross multiply
    114,979.05x = 172,437.12 × 72,795.60
  4. Step 4: Simplify right side
    114,979.05x = 12,552,663,612.67
  5. Step 5: Solve for x
    x = 12,552,663,612.67/114,979.05
  6. Step 6: Final answer
    x = 109,173.49

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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.