Home / 140,146.23-193,401.75-86,462.40

Finding the Fourth Proportional to 140,146.23, 193,401.75 and 86,462.40

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Solution

The fourth proportional to 140,146.23, 193,401.75 and 86,462.40 is: 119,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,146.23 : 193,401.75 = 86,462.40 : x
  2. Step 2: Convert to fraction form
    140,146.23/193,401.75 = 86,462.40/x
  3. Step 3: Cross multiply
    140,146.23x = 193,401.75 × 86,462.40
  4. Step 4: Simplify right side
    140,146.23x = 16,721,979,469.20
  5. Step 5: Solve for x
    x = 16,721,979,469.20/140,146.23
  6. Step 6: Final answer
    x = 119,318.08

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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.