Home / 148,130.13-204,419.64-81,062.13

Finding the Fourth Proportional to 148,130.13, 204,419.64 and 81,062.13

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Solution

The fourth proportional to 148,130.13, 204,419.64 and 81,062.13 is: 111,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,130.13 : 204,419.64 = 81,062.13 : x
  2. Step 2: Convert to fraction form
    148,130.13/204,419.64 = 81,062.13/x
  3. Step 3: Cross multiply
    148,130.13x = 204,419.64 × 81,062.13
  4. Step 4: Simplify right side
    148,130.13x = 16,570,691,432.23
  5. Step 5: Solve for x
    x = 16,570,691,432.23/148,130.13
  6. Step 6: Final answer
    x = 111,865.77

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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.