Home / 145,096.58-200,252.82-81,437.86

Finding the Fourth Proportional to 145,096.58, 200,252.82 and 81,437.86

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Solution

The fourth proportional to 145,096.58, 200,252.82 and 81,437.86 is: 112,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,096.58 : 200,252.82 = 81,437.86 : x
  2. Step 2: Convert to fraction form
    145,096.58/200,252.82 = 81,437.86/x
  3. Step 3: Cross multiply
    145,096.58x = 200,252.82 × 81,437.86
  4. Step 4: Simplify right side
    145,096.58x = 16,308,161,119.77
  5. Step 5: Solve for x
    x = 16,308,161,119.77/145,096.58
  6. Step 6: Final answer
    x = 112,395.21

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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.