Home / 117,985.20-176,977.80-34,879.20

Finding the Fourth Proportional to 117,985.20, 176,977.80 and 34,879.20

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Solution

The fourth proportional to 117,985.20, 176,977.80 and 34,879.20 is: 52,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,985.20 : 176,977.80 = 34,879.20 : x
  2. Step 2: Convert to fraction form
    117,985.20/176,977.80 = 34,879.20/x
  3. Step 3: Cross multiply
    117,985.20x = 176,977.80 × 34,879.20
  4. Step 4: Simplify right side
    117,985.20x = 6,172,844,081.76
  5. Step 5: Solve for x
    x = 6,172,844,081.76/117,985.20
  6. Step 6: Final answer
    x = 52,318.80

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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.