Home / 113,427.80-170,128.73-30,328.28

Finding the Fourth Proportional to 113,427.80, 170,128.73 and 30,328.28

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Solution

The fourth proportional to 113,427.80, 170,128.73 and 30,328.28 is: 45,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,427.80 : 170,128.73 = 30,328.28 : x
  2. Step 2: Convert to fraction form
    113,427.80/170,128.73 = 30,328.28/x
  3. Step 3: Cross multiply
    113,427.80x = 170,128.73 × 30,328.28
  4. Step 4: Simplify right side
    113,427.80x = 5,159,710,908.84
  5. Step 5: Solve for x
    x = 5,159,710,908.84/113,427.80
  6. Step 6: Final answer
    x = 45,488.95

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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.