Home / 147,723.14-203,857.76-87,315.57

Finding the Fourth Proportional to 147,723.14, 203,857.76 and 87,315.57

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Solution

The fourth proportional to 147,723.14, 203,857.76 and 87,315.57 is: 120,495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,723.14 : 203,857.76 = 87,315.57 : x
  2. Step 2: Convert to fraction form
    147,723.14/203,857.76 = 87,315.57/x
  3. Step 3: Cross multiply
    147,723.14x = 203,857.76 × 87,315.57
  4. Step 4: Simplify right side
    147,723.14x = 17,799,956,731.61
  5. Step 5: Solve for x
    x = 17,799,956,731.61/147,723.14
  6. Step 6: Final answer
    x = 120,495.38

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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.