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Finding the Fourth Proportional to 110,003.70, 164,713.95 and 86,675.70

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Solution

The fourth proportional to 110,003.70, 164,713.95 and 86,675.70 is: 129,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,003.70 : 164,713.95 = 86,675.70 : x
  2. Step 2: Convert to fraction form
    110,003.70/164,713.95 = 86,675.70/x
  3. Step 3: Cross multiply
    110,003.70x = 164,713.95 × 86,675.70
  4. Step 4: Simplify right side
    110,003.70x = 14,276,696,916.02
  5. Step 5: Solve for x
    x = 14,276,696,916.02/110,003.70
  6. Step 6: Final answer
    x = 129,783.79

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1.5x scale

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.