Home / 134,538.20-201,663.30-45,709.40

Finding the Fourth Proportional to 134,538.20, 201,663.30 and 45,709.40

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Solution

The fourth proportional to 134,538.20, 201,663.30 and 45,709.40 is: 68,515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,538.20 : 201,663.30 = 45,709.40 : x
  2. Step 2: Convert to fraction form
    134,538.20/201,663.30 = 45,709.40/x
  3. Step 3: Cross multiply
    134,538.20x = 201,663.30 × 45,709.40
  4. Step 4: Simplify right side
    134,538.20x = 9,217,908,445.02
  5. Step 5: Solve for x
    x = 9,217,908,445.02/134,538.20
  6. Step 6: Final answer
    x = 68,515.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.