Home / 145,700.67-201,040.26-81,168.35

Finding the Fourth Proportional to 145,700.67, 201,040.26 and 81,168.35

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Solution

The fourth proportional to 145,700.67, 201,040.26 and 81,168.35 is: 111,997.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,700.67 : 201,040.26 = 81,168.35 : x
  2. Step 2: Convert to fraction form
    145,700.67/201,040.26 = 81,168.35/x
  3. Step 3: Cross multiply
    145,700.67x = 201,040.26 × 81,168.35
  4. Step 4: Simplify right side
    145,700.67x = 16,318,105,182.57
  5. Step 5: Solve for x
    x = 16,318,105,182.57/145,700.67
  6. Step 6: Final answer
    x = 111,997.46

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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.