Home / 98,706.85-136,216.55-53,385.73

Finding the Fourth Proportional to 98,706.85, 136,216.55 and 53,385.73

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Solution

The fourth proportional to 98,706.85, 136,216.55 and 53,385.73 is: 73,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,706.85 : 136,216.55 = 53,385.73 : x
  2. Step 2: Convert to fraction form
    98,706.85/136,216.55 = 53,385.73/x
  3. Step 3: Cross multiply
    98,706.85x = 136,216.55 × 53,385.73
  4. Step 4: Simplify right side
    98,706.85x = 7,272,019,752.75
  5. Step 5: Solve for x
    x = 7,272,019,752.75/98,706.85
  6. Step 6: Final answer
    x = 73,672.90

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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.