Home / 140,071.88-210,189.84-51,331.62

Finding the Fourth Proportional to 140,071.88, 210,189.84 and 51,331.62

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Solution

The fourth proportional to 140,071.88, 210,189.84 and 51,331.62 is: 77,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,071.88 : 210,189.84 = 51,331.62 : x
  2. Step 2: Convert to fraction form
    140,071.88/210,189.84 = 51,331.62/x
  3. Step 3: Cross multiply
    140,071.88x = 210,189.84 × 51,331.62
  4. Step 4: Simplify right side
    140,071.88x = 10,789,385,590.46
  5. Step 5: Solve for x
    x = 10,789,385,590.46/140,071.88
  6. Step 6: Final answer
    x = 77,027.49

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1.5x scale

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.