Home / 145,729.08-201,102.20-82,065.50

Finding the Fourth Proportional to 145,729.08, 201,102.20 and 82,065.50

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Solution

The fourth proportional to 145,729.08, 201,102.20 and 82,065.50 is: 113,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,729.08 : 201,102.20 = 82,065.50 : x
  2. Step 2: Convert to fraction form
    145,729.08/201,102.20 = 82,065.50/x
  3. Step 3: Cross multiply
    145,729.08x = 201,102.20 × 82,065.50
  4. Step 4: Simplify right side
    145,729.08x = 16,503,552,594.10
  5. Step 5: Solve for x
    x = 16,503,552,594.10/145,729.08
  6. Step 6: Final answer
    x = 113,248.18

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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.