Home / 159,051.11-219,484.96-87,430.61

Finding the Fourth Proportional to 159,051.11, 219,484.96 and 87,430.61

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Solution

The fourth proportional to 159,051.11, 219,484.96 and 87,430.61 is: 120,651.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,051.11 : 219,484.96 = 87,430.61 : x
  2. Step 2: Convert to fraction form
    159,051.11/219,484.96 = 87,430.61/x
  3. Step 3: Cross multiply
    159,051.11x = 219,484.96 × 87,430.61
  4. Step 4: Simplify right side
    159,051.11x = 19,189,704,268.76
  5. Step 5: Solve for x
    x = 19,189,704,268.76/159,051.11
  6. Step 6: Final answer
    x = 120,651.18

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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.