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Finding the Fourth Proportional to 143,693.06, 215,539.56 and 43,853.76

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Solution

The fourth proportional to 143,693.06, 215,539.56 and 43,853.76 is: 65,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,693.06 : 215,539.56 = 43,853.76 : x
  2. Step 2: Convert to fraction form
    143,693.06/215,539.56 = 43,853.76/x
  3. Step 3: Cross multiply
    143,693.06x = 215,539.56 × 43,853.76
  4. Step 4: Simplify right side
    143,693.06x = 9,452,220,134.75
  5. Step 5: Solve for x
    x = 9,452,220,134.75/143,693.06
  6. Step 6: Final answer
    x = 65,780.63

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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.