Home / 98,635.32-136,122.21-56,185.74

Finding the Fourth Proportional to 98,635.32, 136,122.21 and 56,185.74

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Solution

The fourth proportional to 98,635.32, 136,122.21 and 56,185.74 is: 77,539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,635.32 : 136,122.21 = 56,185.74 : x
  2. Step 2: Convert to fraction form
    98,635.32/136,122.21 = 56,185.74/x
  3. Step 3: Cross multiply
    98,635.32x = 136,122.21 × 56,185.74
  4. Step 4: Simplify right side
    98,635.32x = 7,648,127,099.29
  5. Step 5: Solve for x
    x = 7,648,127,099.29/98,635.32
  6. Step 6: Final answer
    x = 77,539.44

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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.