Home / 194,001.40-291,002.10-81,808.30

Finding the Fourth Proportional to 194,001.40, 291,002.10 and 81,808.30

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Solution

The fourth proportional to 194,001.40, 291,002.10 and 81,808.30 is: 122,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,001.40 : 291,002.10 = 81,808.30 : x
  2. Step 2: Convert to fraction form
    194,001.40/291,002.10 = 81,808.30/x
  3. Step 3: Cross multiply
    194,001.40x = 291,002.10 × 81,808.30
  4. Step 4: Simplify right side
    194,001.40x = 23,806,387,097.43
  5. Step 5: Solve for x
    x = 23,806,387,097.43/194,001.40
  6. Step 6: Final answer
    x = 122,712.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.