Home / 147,439.47-221,157.38-103,983.45

Finding the Fourth Proportional to 147,439.47, 221,157.38 and 103,983.45

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Solution

The fourth proportional to 147,439.47, 221,157.38 and 103,983.45 is: 155,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,439.47 : 221,157.38 = 103,983.45 : x
  2. Step 2: Convert to fraction form
    147,439.47/221,157.38 = 103,983.45/x
  3. Step 3: Cross multiply
    147,439.47x = 221,157.38 × 103,983.45
  4. Step 4: Simplify right side
    147,439.47x = 22,996,706,845.44
  5. Step 5: Solve for x
    x = 22,996,706,845.44/147,439.47
  6. Step 6: Final answer
    x = 155,973.88

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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.