Home / 119,857.23-165,402.81-66,142.24

Finding the Fourth Proportional to 119,857.23, 165,402.81 and 66,142.24

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Solution

The fourth proportional to 119,857.23, 165,402.81 and 66,142.24 is: 91,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,857.23 : 165,402.81 = 66,142.24 : x
  2. Step 2: Convert to fraction form
    119,857.23/165,402.81 = 66,142.24/x
  3. Step 3: Cross multiply
    119,857.23x = 165,402.81 × 66,142.24
  4. Step 4: Simplify right side
    119,857.23x = 10,940,111,942.19
  5. Step 5: Solve for x
    x = 10,940,111,942.19/119,857.23
  6. Step 6: Final answer
    x = 91,276.20

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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.