Home / 118,590.14-163,651.50-72,667.65

Finding the Fourth Proportional to 118,590.14, 163,651.50 and 72,667.65

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Solution

The fourth proportional to 118,590.14, 163,651.50 and 72,667.65 is: 100,279.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,590.14 : 163,651.50 = 72,667.65 : x
  2. Step 2: Convert to fraction form
    118,590.14/163,651.50 = 72,667.65/x
  3. Step 3: Cross multiply
    118,590.14x = 163,651.50 × 72,667.65
  4. Step 4: Simplify right side
    118,590.14x = 11,892,170,537.67
  5. Step 5: Solve for x
    x = 11,892,170,537.67/118,590.14
  6. Step 6: Final answer
    x = 100,279.59

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1.5x scale

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.