Home / 145,775.13-201,165.16-82,111.56

Finding the Fourth Proportional to 145,775.13, 201,165.16 and 82,111.56

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Solution

The fourth proportional to 145,775.13, 201,165.16 and 82,111.56 is: 113,311.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,775.13 : 201,165.16 = 82,111.56 : x
  2. Step 2: Convert to fraction form
    145,775.13/201,165.16 = 82,111.56/x
  3. Step 3: Cross multiply
    145,775.13x = 201,165.16 × 82,111.56
  4. Step 4: Simplify right side
    145,775.13x = 16,517,985,431.11
  5. Step 5: Solve for x
    x = 16,517,985,431.11/145,775.13
  6. Step 6: Final answer
    x = 113,311.41

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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.