Home / 156,613.30-234,919.95-77,881.30

Finding the Fourth Proportional to 156,613.30, 234,919.95 and 77,881.30

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Solution

The fourth proportional to 156,613.30, 234,919.95 and 77,881.30 is: 116,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,613.30 : 234,919.95 = 77,881.30 : x
  2. Step 2: Convert to fraction form
    156,613.30/234,919.95 = 77,881.30/x
  3. Step 3: Cross multiply
    156,613.30x = 234,919.95 × 77,881.30
  4. Step 4: Simplify right side
    156,613.30x = 18,295,871,101.94
  5. Step 5: Solve for x
    x = 18,295,871,101.94/156,613.30
  6. Step 6: Final answer
    x = 116,821.95

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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.