Home / 147,135.12-220,681.44-47,282.28

Finding the Fourth Proportional to 147,135.12, 220,681.44 and 47,282.28

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Solution

The fourth proportional to 147,135.12, 220,681.44 and 47,282.28 is: 70,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,135.12 : 220,681.44 = 47,282.28 : x
  2. Step 2: Convert to fraction form
    147,135.12/220,681.44 = 47,282.28/x
  3. Step 3: Cross multiply
    147,135.12x = 220,681.44 × 47,282.28
  4. Step 4: Simplify right side
    147,135.12x = 10,434,321,636.88
  5. Step 5: Solve for x
    x = 10,434,321,636.88/147,135.12
  6. Step 6: Final answer
    x = 70,916.59

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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.