Home / 125,816.68-173,631.79-72,112.06

Finding the Fourth Proportional to 125,816.68, 173,631.79 and 72,112.06

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Solution

The fourth proportional to 125,816.68, 173,631.79 and 72,112.06 is: 99,517.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,816.68 : 173,631.79 = 72,112.06 : x
  2. Step 2: Convert to fraction form
    125,816.68/173,631.79 = 72,112.06/x
  3. Step 3: Cross multiply
    125,816.68x = 173,631.79 × 72,112.06
  4. Step 4: Simplify right side
    125,816.68x = 12,520,946,058.39
  5. Step 5: Solve for x
    x = 12,520,946,058.39/125,816.68
  6. Step 6: Final answer
    x = 99,517.38

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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.