Home / 140,050.30-193,285.76-79,630

Finding the Fourth Proportional to 140,050.30, 193,285.76 and 79,630

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Solution

The fourth proportional to 140,050.30, 193,285.76 and 79,630 is: 109,898.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,050.30 : 193,285.76 = 79,630 : x
  2. Step 2: Convert to fraction form
    140,050.30/193,285.76 = 79,630/x
  3. Step 3: Cross multiply
    140,050.30x = 193,285.76 × 79,630
  4. Step 4: Simplify right side
    140,050.30x = 15,391,345,068.80
  5. Step 5: Solve for x
    x = 15,391,345,068.80/140,050.30
  6. Step 6: Final answer
    x = 109,898.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.