Home / 113,835.40-170,637.90-67,064.20

Finding the Fourth Proportional to 113,835.40, 170,637.90 and 67,064.20

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Solution

The fourth proportional to 113,835.40, 170,637.90 and 67,064.20 is: 100,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,835.40 : 170,637.90 = 67,064.20 : x
  2. Step 2: Convert to fraction form
    113,835.40/170,637.90 = 67,064.20/x
  3. Step 3: Cross multiply
    113,835.40x = 170,637.90 × 67,064.20
  4. Step 4: Simplify right side
    113,835.40x = 11,443,694,253.18
  5. Step 5: Solve for x
    x = 11,443,694,253.18/113,835.40
  6. Step 6: Final answer
    x = 100,528.43

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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.