Home / 113,415.40-170,137-38,547.88

Finding the Fourth Proportional to 113,415.40, 170,137 and 38,547.88

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Solution

The fourth proportional to 113,415.40, 170,137 and 38,547.88 is: 57,826.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,415.40 : 170,137 = 38,547.88 : x
  2. Step 2: Convert to fraction form
    113,415.40/170,137 = 38,547.88/x
  3. Step 3: Cross multiply
    113,415.40x = 170,137 × 38,547.88
  4. Step 4: Simplify right side
    113,415.40x = 6,558,420,659.56
  5. Step 5: Solve for x
    x = 6,558,420,659.56/113,415.40
  6. Step 6: Final answer
    x = 57,826.54

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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.