Home / 113,510.76-170,371.06-57,390.36

Finding the Fourth Proportional to 113,510.76, 170,371.06 and 57,390.36

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Solution

The fourth proportional to 113,510.76, 170,371.06 and 57,390.36 is: 86,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,510.76 : 170,371.06 = 57,390.36 : x
  2. Step 2: Convert to fraction form
    113,510.76/170,371.06 = 57,390.36/x
  3. Step 3: Cross multiply
    113,510.76x = 170,371.06 × 57,390.36
  4. Step 4: Simplify right side
    113,510.76x = 9,777,656,466.98
  5. Step 5: Solve for x
    x = 9,777,656,466.98/113,510.76
  6. Step 6: Final answer
    x = 86,138.59

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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.