Home / 149,104.29-205,685.53-88,631.92

Finding the Fourth Proportional to 149,104.29, 205,685.53 and 88,631.92

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Solution

The fourth proportional to 149,104.29, 205,685.53 and 88,631.92 is: 122,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,104.29 : 205,685.53 = 88,631.92 : x
  2. Step 2: Convert to fraction form
    149,104.29/205,685.53 = 88,631.92/x
  3. Step 3: Cross multiply
    149,104.29x = 205,685.53 × 88,631.92
  4. Step 4: Simplify right side
    149,104.29x = 18,230,303,475.64
  5. Step 5: Solve for x
    x = 18,230,303,475.64/149,104.29
  6. Step 6: Final answer
    x = 122,265.45

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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.