Home / 147,985.77-204,220.11-80,002.80

Finding the Fourth Proportional to 147,985.77, 204,220.11 and 80,002.80

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Solution

The fourth proportional to 147,985.77, 204,220.11 and 80,002.80 is: 110,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,985.77 : 204,220.11 = 80,002.80 : x
  2. Step 2: Convert to fraction form
    147,985.77/204,220.11 = 80,002.80/x
  3. Step 3: Cross multiply
    147,985.77x = 204,220.11 × 80,002.80
  4. Step 4: Simplify right side
    147,985.77x = 16,338,180,616.31
  5. Step 5: Solve for x
    x = 16,338,180,616.31/147,985.77
  6. Step 6: Final answer
    x = 110,403.73

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1.5x scale

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.