Home / 102,027.42-140,703.68-63,774.78

Finding the Fourth Proportional to 102,027.42, 140,703.68 and 63,774.78

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Solution

The fourth proportional to 102,027.42, 140,703.68 and 63,774.78 is: 87,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,027.42 : 140,703.68 = 63,774.78 : x
  2. Step 2: Convert to fraction form
    102,027.42/140,703.68 = 63,774.78/x
  3. Step 3: Cross multiply
    102,027.42x = 140,703.68 × 63,774.78
  4. Step 4: Simplify right side
    102,027.42x = 8,973,346,237.19
  5. Step 5: Solve for x
    x = 8,973,346,237.19/102,027.42
  6. Step 6: Final answer
    x = 87,950.34

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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.