Home / 119,767.72-165,283.56-66,054.40

Finding the Fourth Proportional to 119,767.72, 165,283.56 and 66,054.40

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Solution

The fourth proportional to 119,767.72, 165,283.56 and 66,054.40 is: 91,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,767.72 : 165,283.56 = 66,054.40 : x
  2. Step 2: Convert to fraction form
    119,767.72/165,283.56 = 66,054.40/x
  3. Step 3: Cross multiply
    119,767.72x = 165,283.56 × 66,054.40
  4. Step 4: Simplify right side
    119,767.72x = 10,917,706,385.66
  5. Step 5: Solve for x
    x = 10,917,706,385.66/119,767.72
  6. Step 6: Final answer
    x = 91,157.34

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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.