Home / 140,534.13-210,794.72-51,781.62

Finding the Fourth Proportional to 140,534.13, 210,794.72 and 51,781.62

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Solution

The fourth proportional to 140,534.13, 210,794.72 and 51,781.62 is: 77,670.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,534.13 : 210,794.72 = 51,781.62 : x
  2. Step 2: Convert to fraction form
    140,534.13/210,794.72 = 51,781.62/x
  3. Step 3: Cross multiply
    140,534.13x = 210,794.72 × 51,781.62
  4. Step 4: Simplify right side
    140,534.13x = 10,915,291,830.14
  5. Step 5: Solve for x
    x = 10,915,291,830.14/140,534.13
  6. Step 6: Final answer
    x = 77,670.04

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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.