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Finding the Fourth Proportional to 163,325.98, 225,384.15 and 99,770.14

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Solution

The fourth proportional to 163,325.98, 225,384.15 and 99,770.14 is: 137,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,325.98 : 225,384.15 = 99,770.14 : x
  2. Step 2: Convert to fraction form
    163,325.98/225,384.15 = 99,770.14/x
  3. Step 3: Cross multiply
    163,325.98x = 225,384.15 × 99,770.14
  4. Step 4: Simplify right side
    163,325.98x = 22,486,608,199.28
  5. Step 5: Solve for x
    x = 22,486,608,199.28/163,325.98
  6. Step 6: Final answer
    x = 137,679.31

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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.