Home / 147,963.68-221,956.32-42,783.20

Finding the Fourth Proportional to 147,963.68, 221,956.32 and 42,783.20

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Solution

The fourth proportional to 147,963.68, 221,956.32 and 42,783.20 is: 64,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,963.68 : 221,956.32 = 42,783.20 : x
  2. Step 2: Convert to fraction form
    147,963.68/221,956.32 = 42,783.20/x
  3. Step 3: Cross multiply
    147,963.68x = 221,956.32 × 42,783.20
  4. Step 4: Simplify right side
    147,963.68x = 9,496,001,629.82
  5. Step 5: Solve for x
    x = 9,496,001,629.82/147,963.68
  6. Step 6: Final answer
    x = 64,177.92

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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.