Home / 145,577.20-200,895.24-81,913.72

Finding the Fourth Proportional to 145,577.20, 200,895.24 and 81,913.72

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Solution

The fourth proportional to 145,577.20, 200,895.24 and 81,913.72 is: 113,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,577.20 : 200,895.24 = 81,913.72 : x
  2. Step 2: Convert to fraction form
    145,577.20/200,895.24 = 81,913.72/x
  3. Step 3: Cross multiply
    145,577.20x = 200,895.24 × 81,913.72
  4. Step 4: Simplify right side
    145,577.20x = 16,456,076,438.69
  5. Step 5: Solve for x
    x = 16,456,076,438.69/145,577.20
  6. Step 6: Final answer
    x = 113,040.20

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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.