Home / 202,154.15-303,111.86-89,780.63

Finding the Fourth Proportional to 202,154.15, 303,111.86 and 89,780.63

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Solution

The fourth proportional to 202,154.15, 303,111.86 and 89,780.63 is: 134,617.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,154.15 : 303,111.86 = 89,780.63 : x
  2. Step 2: Convert to fraction form
    202,154.15/303,111.86 = 89,780.63/x
  3. Step 3: Cross multiply
    202,154.15x = 303,111.86 × 89,780.63
  4. Step 4: Simplify right side
    202,154.15x = 27,213,571,786.81
  5. Step 5: Solve for x
    x = 27,213,571,786.81/202,154.15
  6. Step 6: Final answer
    x = 134,617.92

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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.