Home / 113,005.12-155,977.32-70,538.08

Finding the Fourth Proportional to 113,005.12, 155,977.32 and 70,538.08

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Solution

The fourth proportional to 113,005.12, 155,977.32 and 70,538.08 is: 97,361.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,005.12 : 155,977.32 = 70,538.08 : x
  2. Step 2: Convert to fraction form
    113,005.12/155,977.32 = 70,538.08/x
  3. Step 3: Cross multiply
    113,005.12x = 155,977.32 × 70,538.08
  4. Step 4: Simplify right side
    113,005.12x = 11,002,340,676.35
  5. Step 5: Solve for x
    x = 11,002,340,676.35/113,005.12
  6. Step 6: Final answer
    x = 97,361.44

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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.