Home / 99,226.72-136,909.20-56,207.20

Finding the Fourth Proportional to 99,226.72, 136,909.20 and 56,207.20

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Solution

The fourth proportional to 99,226.72, 136,909.20 and 56,207.20 is: 77,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,226.72 : 136,909.20 = 56,207.20 : x
  2. Step 2: Convert to fraction form
    99,226.72/136,909.20 = 56,207.20/x
  3. Step 3: Cross multiply
    99,226.72x = 136,909.20 × 56,207.20
  4. Step 4: Simplify right side
    99,226.72x = 7,695,282,786.24
  5. Step 5: Solve for x
    x = 7,695,282,786.24/99,226.72
  6. Step 6: Final answer
    x = 77,552.53

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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.