Home / 119,784.75-165,303.72-66,071.22

Finding the Fourth Proportional to 119,784.75, 165,303.72 and 66,071.22

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Solution

The fourth proportional to 119,784.75, 165,303.72 and 66,071.22 is: 91,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,784.75 : 165,303.72 = 66,071.22 : x
  2. Step 2: Convert to fraction form
    119,784.75/165,303.72 = 66,071.22/x
  3. Step 3: Cross multiply
    119,784.75x = 165,303.72 × 66,071.22
  4. Step 4: Simplify right side
    119,784.75x = 10,921,818,450.94
  5. Step 5: Solve for x
    x = 10,921,818,450.94/119,784.75
  6. Step 6: Final answer
    x = 91,178.71

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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.