Home / 109,966.03-164,856.70-76,587.55

Finding the Fourth Proportional to 109,966.03, 164,856.70 and 76,587.55

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Solution

The fourth proportional to 109,966.03, 164,856.70 and 76,587.55 is: 114,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,966.03 : 164,856.70 = 76,587.55 : x
  2. Step 2: Convert to fraction form
    109,966.03/164,856.70 = 76,587.55/x
  3. Step 3: Cross multiply
    109,966.03x = 164,856.70 × 76,587.55
  4. Step 4: Simplify right side
    109,966.03x = 12,625,970,754.09
  5. Step 5: Solve for x
    x = 12,625,970,754.09/109,966.03
  6. Step 6: Final answer
    x = 114,817.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.