Home / 99,618.08-137,473-56,597.64

Finding the Fourth Proportional to 99,618.08, 137,473 and 56,597.64

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Solution

The fourth proportional to 99,618.08, 137,473 and 56,597.64 is: 78,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.08 : 137,473 = 56,597.64 : x
  2. Step 2: Convert to fraction form
    99,618.08/137,473 = 56,597.64/x
  3. Step 3: Cross multiply
    99,618.08x = 137,473 × 56,597.64
  4. Step 4: Simplify right side
    99,618.08x = 7,780,647,363.72
  5. Step 5: Solve for x
    x = 7,780,647,363.72/99,618.08
  6. Step 6: Final answer
    x = 78,104.77

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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.