Home / 102,056.05-140,849.01-56,738.53

Finding the Fourth Proportional to 102,056.05, 140,849.01 and 56,738.53

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Solution

The fourth proportional to 102,056.05, 140,849.01 and 56,738.53 is: 78,305.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,056.05 : 140,849.01 = 56,738.53 : x
  2. Step 2: Convert to fraction form
    102,056.05/140,849.01 = 56,738.53/x
  3. Step 3: Cross multiply
    102,056.05x = 140,849.01 × 56,738.53
  4. Step 4: Simplify right side
    102,056.05x = 7,991,565,779.36
  5. Step 5: Solve for x
    x = 7,991,565,779.36/102,056.05
  6. Step 6: Final answer
    x = 78,305.65

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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.