Home / 119,944.79-165,525.86-77,577.12

Finding the Fourth Proportional to 119,944.79, 165,525.86 and 77,577.12

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Solution

The fourth proportional to 119,944.79, 165,525.86 and 77,577.12 is: 107,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,944.79 : 165,525.86 = 77,577.12 : x
  2. Step 2: Convert to fraction form
    119,944.79/165,525.86 = 77,577.12/x
  3. Step 3: Cross multiply
    119,944.79x = 165,525.86 × 77,577.12
  4. Step 4: Simplify right side
    119,944.79x = 12,841,019,116.44
  5. Step 5: Solve for x
    x = 12,841,019,116.44/119,944.79
  6. Step 6: Final answer
    x = 107,057.75

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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.