Home / 134,148.60-200,931.30-81,466.20

Finding the Fourth Proportional to 134,148.60, 200,931.30 and 81,466.20

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Solution

The fourth proportional to 134,148.60, 200,931.30 and 81,466.20 is: 122,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,148.60 : 200,931.30 = 81,466.20 : x
  2. Step 2: Convert to fraction form
    134,148.60/200,931.30 = 81,466.20/x
  3. Step 3: Cross multiply
    134,148.60x = 200,931.30 × 81,466.20
  4. Step 4: Simplify right side
    134,148.60x = 16,369,109,472.06
  5. Step 5: Solve for x
    x = 16,369,109,472.06/134,148.60
  6. Step 6: Final answer
    x = 122,022.22

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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.