Home / 84,022.15-125,901.99-71,490.64

Finding the Fourth Proportional to 84,022.15, 125,901.99 and 71,490.64

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Solution

The fourth proportional to 84,022.15, 125,901.99 and 71,490.64 is: 107,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,022.15 : 125,901.99 = 71,490.64 : x
  2. Step 2: Convert to fraction form
    84,022.15/125,901.99 = 71,490.64/x
  3. Step 3: Cross multiply
    84,022.15x = 125,901.99 × 71,490.64
  4. Step 4: Simplify right side
    84,022.15x = 9,000,813,842.37
  5. Step 5: Solve for x
    x = 9,000,813,842.37/84,022.15
  6. Step 6: Final answer
    x = 107,124.30

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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.