Home / 90,581.95-136,415.41-82,501.66

Finding the Fourth Proportional to 90,581.95, 136,415.41 and 82,501.66

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Solution

The fourth proportional to 90,581.95, 136,415.41 and 82,501.66 is: 124,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,581.95 : 136,415.41 = 82,501.66 : x
  2. Step 2: Convert to fraction form
    90,581.95/136,415.41 = 82,501.66/x
  3. Step 3: Cross multiply
    90,581.95x = 136,415.41 × 82,501.66
  4. Step 4: Simplify right side
    90,581.95x = 11,254,497,774.58
  5. Step 5: Solve for x
    x = 11,254,497,774.58/90,581.95
  6. Step 6: Final answer
    x = 124,246.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.