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Finding the Fourth Proportional to 119,994.69, 165,602.93 and 66,285.57

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Solution

The fourth proportional to 119,994.69, 165,602.93 and 66,285.57 is: 91,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,994.69 : 165,602.93 = 66,285.57 : x
  2. Step 2: Convert to fraction form
    119,994.69/165,602.93 = 66,285.57/x
  3. Step 3: Cross multiply
    119,994.69x = 165,602.93 × 66,285.57
  4. Step 4: Simplify right side
    119,994.69x = 10,977,084,277.29
  5. Step 5: Solve for x
    x = 10,977,084,277.29/119,994.69
  6. Step 6: Final answer
    x = 91,479.75

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1.5x scale

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.