Home / 140,381.78-193,398.45-97,864.34

Finding the Fourth Proportional to 140,381.78, 193,398.45 and 97,864.34

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Solution

The fourth proportional to 140,381.78, 193,398.45 and 97,864.34 is: 134,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,381.78 : 193,398.45 = 97,864.34 : x
  2. Step 2: Convert to fraction form
    140,381.78/193,398.45 = 97,864.34/x
  3. Step 3: Cross multiply
    140,381.78x = 193,398.45 × 97,864.34
  4. Step 4: Simplify right side
    140,381.78x = 18,926,811,666.27
  5. Step 5: Solve for x
    x = 18,926,811,666.27/140,381.78
  6. Step 6: Final answer
    x = 134,823.85

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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.