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Finding the Fourth Proportional to 140,655.62, 210,982.80 and 57,549.62

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Solution

The fourth proportional to 140,655.62, 210,982.80 and 57,549.62 is: 86,324.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,655.62 : 210,982.80 = 57,549.62 : x
  2. Step 2: Convert to fraction form
    140,655.62/210,982.80 = 57,549.62/x
  3. Step 3: Cross multiply
    140,655.62x = 210,982.80 × 57,549.62
  4. Step 4: Simplify right side
    140,655.62x = 12,141,979,966.54
  5. Step 5: Solve for x
    x = 12,141,979,966.54/140,655.62
  6. Step 6: Final answer
    x = 86,324.17

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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.