Home / 129,301.80-193,952.70-99,777.30

Finding the Fourth Proportional to 129,301.80, 193,952.70 and 99,777.30

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Solution

The fourth proportional to 129,301.80, 193,952.70 and 99,777.30 is: 149,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,301.80 : 193,952.70 = 99,777.30 : x
  2. Step 2: Convert to fraction form
    129,301.80/193,952.70 = 99,777.30/x
  3. Step 3: Cross multiply
    129,301.80x = 193,952.70 × 99,777.30
  4. Step 4: Simplify right side
    129,301.80x = 19,352,076,733.71
  5. Step 5: Solve for x
    x = 19,352,076,733.71/129,301.80
  6. Step 6: Final answer
    x = 149,665.95

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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.