Home / 113,203.60-169,697.40-42,107.20

Finding the Fourth Proportional to 113,203.60, 169,697.40 and 42,107.20

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Solution

The fourth proportional to 113,203.60, 169,697.40 and 42,107.20 is: 63,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,203.60 : 169,697.40 = 42,107.20 : x
  2. Step 2: Convert to fraction form
    113,203.60/169,697.40 = 42,107.20/x
  3. Step 3: Cross multiply
    113,203.60x = 169,697.40 × 42,107.20
  4. Step 4: Simplify right side
    113,203.60x = 7,145,482,361.28
  5. Step 5: Solve for x
    x = 7,145,482,361.28/113,203.60
  6. Step 6: Final answer
    x = 63,120.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.