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Finding the Fourth Proportional to 101,363.64, 152,070.18 and 71,436.21

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Solution

The fourth proportional to 101,363.64, 152,070.18 and 71,436.21 is: 107,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,363.64 : 152,070.18 = 71,436.21 : x
  2. Step 2: Convert to fraction form
    101,363.64/152,070.18 = 71,436.21/x
  3. Step 3: Cross multiply
    101,363.64x = 152,070.18 × 71,436.21
  4. Step 4: Simplify right side
    101,363.64x = 10,863,317,313.22
  5. Step 5: Solve for x
    x = 10,863,317,313.22/101,363.64
  6. Step 6: Final answer
    x = 107,171.74

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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.