Home / 113,731.17-170,744.58-87,454.36

Finding the Fourth Proportional to 113,731.17, 170,744.58 and 87,454.36

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Solution

The fourth proportional to 113,731.17, 170,744.58 and 87,454.36 is: 131,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,731.17 : 170,744.58 = 87,454.36 : x
  2. Step 2: Convert to fraction form
    113,731.17/170,744.58 = 87,454.36/x
  3. Step 3: Cross multiply
    113,731.17x = 170,744.58 × 87,454.36
  4. Step 4: Simplify right side
    113,731.17x = 14,932,357,967.37
  5. Step 5: Solve for x
    x = 14,932,357,967.37/113,731.17
  6. Step 6: Final answer
    x = 131,295.21

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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.