Home / 119,853.21-165,347.12-84,066.60

Finding the Fourth Proportional to 119,853.21, 165,347.12 and 84,066.60

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Solution

The fourth proportional to 119,853.21, 165,347.12 and 84,066.60 is: 115,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,853.21 : 165,347.12 = 84,066.60 : x
  2. Step 2: Convert to fraction form
    119,853.21/165,347.12 = 84,066.60/x
  3. Step 3: Cross multiply
    119,853.21x = 165,347.12 × 84,066.60
  4. Step 4: Simplify right side
    119,853.21x = 13,900,169,777.86
  5. Step 5: Solve for x
    x = 13,900,169,777.86/119,853.21
  6. Step 6: Final answer
    x = 115,976.62

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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.