Home / 98,649.20-136,131.90-56,204.12

Finding the Fourth Proportional to 98,649.20, 136,131.90 and 56,204.12

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Solution

The fourth proportional to 98,649.20, 136,131.90 and 56,204.12 is: 77,559.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,649.20 : 136,131.90 = 56,204.12 : x
  2. Step 2: Convert to fraction form
    98,649.20/136,131.90 = 56,204.12/x
  3. Step 3: Cross multiply
    98,649.20x = 136,131.90 × 56,204.12
  4. Step 4: Simplify right side
    98,649.20x = 7,651,173,643.43
  5. Step 5: Solve for x
    x = 7,651,173,643.43/98,649.20
  6. Step 6: Final answer
    x = 77,559.41

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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.