Home / 118,108.62-176,965.68-82,985.40

Finding the Fourth Proportional to 118,108.62, 176,965.68 and 82,985.40

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Solution

The fourth proportional to 118,108.62, 176,965.68 and 82,985.40 is: 124,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,108.62 : 176,965.68 = 82,985.40 : x
  2. Step 2: Convert to fraction form
    118,108.62/176,965.68 = 82,985.40/x
  3. Step 3: Cross multiply
    118,108.62x = 176,965.68 × 82,985.40
  4. Step 4: Simplify right side
    118,108.62x = 14,685,567,741.07
  5. Step 5: Solve for x
    x = 14,685,567,741.07/118,108.62
  6. Step 6: Final answer
    x = 124,339.51

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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.