Home / 119,881.26-165,427.65-66,154.77

Finding the Fourth Proportional to 119,881.26, 165,427.65 and 66,154.77

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Solution

The fourth proportional to 119,881.26, 165,427.65 and 66,154.77 is: 91,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,881.26 : 165,427.65 = 66,154.77 : x
  2. Step 2: Convert to fraction form
    119,881.26/165,427.65 = 66,154.77/x
  3. Step 3: Cross multiply
    119,881.26x = 165,427.65 × 66,154.77
  4. Step 4: Simplify right side
    119,881.26x = 10,943,828,137.39
  5. Step 5: Solve for x
    x = 10,943,828,137.39/119,881.26
  6. Step 6: Final answer
    x = 91,288.90

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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.