Home / 99,226.50-136,934.19-56,808.42

Finding the Fourth Proportional to 99,226.50, 136,934.19 and 56,808.42

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Solution

The fourth proportional to 99,226.50, 136,934.19 and 56,808.42 is: 78,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,226.50 : 136,934.19 = 56,808.42 : x
  2. Step 2: Convert to fraction form
    99,226.50/136,934.19 = 56,808.42/x
  3. Step 3: Cross multiply
    99,226.50x = 136,934.19 × 56,808.42
  4. Step 4: Simplify right side
    99,226.50x = 7,779,014,977.88
  5. Step 5: Solve for x
    x = 7,779,014,977.88/99,226.50
  6. Step 6: Final answer
    x = 78,396.55

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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.