Home / 147,478.55-203,495.24-82,931.06

Finding the Fourth Proportional to 147,478.55, 203,495.24 and 82,931.06

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Solution

The fourth proportional to 147,478.55, 203,495.24 and 82,931.06 is: 114,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,478.55 : 203,495.24 = 82,931.06 : x
  2. Step 2: Convert to fraction form
    147,478.55/203,495.24 = 82,931.06/x
  3. Step 3: Cross multiply
    147,478.55x = 203,495.24 × 82,931.06
  4. Step 4: Simplify right side
    147,478.55x = 16,876,074,526.02
  5. Step 5: Solve for x
    x = 16,876,074,526.02/147,478.55
  6. Step 6: Final answer
    x = 114,430.71

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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.