Home / 115,085,621.12-172,653,314.88-61,225,105.28

Finding the Fourth Proportional to 115,085,621.12, 172,653,314.88 and 61,225,105.28

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Solution

The fourth proportional to 115,085,621.12, 172,653,314.88 and 61,225,105.28 is: 91,850,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,085,621.12 : 172,653,314.88 = 61,225,105.28 : x
  2. Step 2: Convert to fraction form
    115,085,621.12/172,653,314.88 = 61,225,105.28/x
  3. Step 3: Cross multiply
    115,085,621.12x = 172,653,314.88 × 61,225,105.28
  4. Step 4: Simplify right side
    115,085,621.12x = 10,570,717,380,468,990
  5. Step 5: Solve for x
    x = 10,570,717,380,468,990/115,085,621.12
  6. Step 6: Final answer
    x = 91,850,895.69

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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.