Home / 145,077.03-200,210.24-81,418.73

Finding the Fourth Proportional to 145,077.03, 200,210.24 and 81,418.73

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Solution

The fourth proportional to 145,077.03, 200,210.24 and 81,418.73 is: 112,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,077.03 : 200,210.24 = 81,418.73 : x
  2. Step 2: Convert to fraction form
    145,077.03/200,210.24 = 81,418.73/x
  3. Step 3: Cross multiply
    145,077.03x = 200,210.24 × 81,418.73
  4. Step 4: Simplify right side
    145,077.03x = 16,300,862,676.29
  5. Step 5: Solve for x
    x = 16,300,862,676.29/145,077.03
  6. Step 6: Final answer
    x = 112,360.05

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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.