Home / 119,530.08-179,078.82-86,068.98

Finding the Fourth Proportional to 119,530.08, 179,078.82 and 86,068.98

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Solution

The fourth proportional to 119,530.08, 179,078.82 and 86,068.98 is: 128,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,530.08 : 179,078.82 = 86,068.98 : x
  2. Step 2: Convert to fraction form
    119,530.08/179,078.82 = 86,068.98/x
  3. Step 3: Cross multiply
    119,530.08x = 179,078.82 × 86,068.98
  4. Step 4: Simplify right side
    119,530.08x = 15,413,131,377.00
  5. Step 5: Solve for x
    x = 15,413,131,377.00/119,530.08
  6. Step 6: Final answer
    x = 128,947.72

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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.