Home / 98,209.85-135,525.22-57,377.76

Finding the Fourth Proportional to 98,209.85, 135,525.22 and 57,377.76

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Solution

The fourth proportional to 98,209.85, 135,525.22 and 57,377.76 is: 79,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,209.85 : 135,525.22 = 57,377.76 : x
  2. Step 2: Convert to fraction form
    98,209.85/135,525.22 = 57,377.76/x
  3. Step 3: Cross multiply
    98,209.85x = 135,525.22 × 57,377.76
  4. Step 4: Simplify right side
    98,209.85x = 7,776,133,403.66
  5. Step 5: Solve for x
    x = 7,776,133,403.66/98,209.85
  6. Step 6: Final answer
    x = 79,178.75

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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.