Home / 146,245.49-201,820.11-85,817.13

Finding the Fourth Proportional to 146,245.49, 201,820.11 and 85,817.13

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Solution

The fourth proportional to 146,245.49, 201,820.11 and 85,817.13 is: 118,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,245.49 : 201,820.11 = 85,817.13 : x
  2. Step 2: Convert to fraction form
    146,245.49/201,820.11 = 85,817.13/x
  3. Step 3: Cross multiply
    146,245.49x = 201,820.11 × 85,817.13
  4. Step 4: Simplify right side
    146,245.49x = 17,319,622,956.89
  5. Step 5: Solve for x
    x = 17,319,622,956.89/146,245.49
  6. Step 6: Final answer
    x = 118,428.43

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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.