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Finding the Fourth Proportional to 134,569.72, 201,878.36 and 55,639.72

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Solution

The fourth proportional to 134,569.72, 201,878.36 and 55,639.72 is: 83,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,569.72 : 201,878.36 = 55,639.72 : x
  2. Step 2: Convert to fraction form
    134,569.72/201,878.36 = 55,639.72/x
  3. Step 3: Cross multiply
    134,569.72x = 201,878.36 × 55,639.72
  4. Step 4: Simplify right side
    134,569.72x = 11,232,455,424.46
  5. Step 5: Solve for x
    x = 11,232,455,424.46/134,569.72
  6. Step 6: Final answer
    x = 83,469.41

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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.