Home / 161,943.17-223,365.89-140,394.40

Finding the Fourth Proportional to 161,943.17, 223,365.89 and 140,394.40

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Solution

The fourth proportional to 161,943.17, 223,365.89 and 140,394.40 is: 193,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,943.17 : 223,365.89 = 140,394.40 : x
  2. Step 2: Convert to fraction form
    161,943.17/223,365.89 = 140,394.40/x
  3. Step 3: Cross multiply
    161,943.17x = 223,365.89 × 140,394.40
  4. Step 4: Simplify right side
    161,943.17x = 31,359,318,288.21
  5. Step 5: Solve for x
    x = 31,359,318,288.21/161,943.17
  6. Step 6: Final answer
    x = 193,643.97

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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.