Home / 102,001.56-140,757.59-56,682.68

Finding the Fourth Proportional to 102,001.56, 140,757.59 and 56,682.68

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Solution

The fourth proportional to 102,001.56, 140,757.59 and 56,682.68 is: 78,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,001.56 : 140,757.59 = 56,682.68 : x
  2. Step 2: Convert to fraction form
    102,001.56/140,757.59 = 56,682.68/x
  3. Step 3: Cross multiply
    102,001.56x = 140,757.59 × 56,682.68
  4. Step 4: Simplify right side
    102,001.56x = 7,978,516,444.34
  5. Step 5: Solve for x
    x = 7,978,516,444.34/102,001.56
  6. Step 6: Final answer
    x = 78,219.55

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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.