Home / 145,771.80-201,096.34-85,305.37

Finding the Fourth Proportional to 145,771.80, 201,096.34 and 85,305.37

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Solution

The fourth proportional to 145,771.80, 201,096.34 and 85,305.37 is: 117,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,771.80 : 201,096.34 = 85,305.37 : x
  2. Step 2: Convert to fraction form
    145,771.80/201,096.34 = 85,305.37/x
  3. Step 3: Cross multiply
    145,771.80x = 201,096.34 × 85,305.37
  4. Step 4: Simplify right side
    145,771.80x = 17,154,597,689.35
  5. Step 5: Solve for x
    x = 17,154,597,689.35/145,771.80
  6. Step 6: Final answer
    x = 117,681.18

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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.