Home / 99,214.12-136,939.08-56,797.12

Finding the Fourth Proportional to 99,214.12, 136,939.08 and 56,797.12

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Solution

The fourth proportional to 99,214.12, 136,939.08 and 56,797.12 is: 78,393.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,214.12 : 136,939.08 = 56,797.12 : x
  2. Step 2: Convert to fraction form
    99,214.12/136,939.08 = 56,797.12/x
  3. Step 3: Cross multiply
    99,214.12x = 136,939.08 × 56,797.12
  4. Step 4: Simplify right side
    99,214.12x = 7,777,745,359.45
  5. Step 5: Solve for x
    x = 7,777,745,359.45/99,214.12
  6. Step 6: Final answer
    x = 78,393.53

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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.