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Finding the Fourth Proportional to 139,466.67, 209,112.35 and 101,529.51

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Solution

The fourth proportional to 139,466.67, 209,112.35 and 101,529.51 is: 152,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,466.67 : 209,112.35 = 101,529.51 : x
  2. Step 2: Convert to fraction form
    139,466.67/209,112.35 = 101,529.51/x
  3. Step 3: Cross multiply
    139,466.67x = 209,112.35 × 101,529.51
  4. Step 4: Simplify right side
    139,466.67x = 21,231,073,922.80
  5. Step 5: Solve for x
    x = 21,231,073,922.80/139,466.67
  6. Step 6: Final answer
    x = 152,230.45

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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.