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Finding the Fourth Proportional to 145,283.44, 200,506.58 and 87,954.08

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Solution

The fourth proportional to 145,283.44, 200,506.58 and 87,954.08 is: 121,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,283.44 : 200,506.58 = 87,954.08 : x
  2. Step 2: Convert to fraction form
    145,283.44/200,506.58 = 87,954.08/x
  3. Step 3: Cross multiply
    145,283.44x = 200,506.58 × 87,954.08
  4. Step 4: Simplify right side
    145,283.44x = 17,635,371,777.85
  5. Step 5: Solve for x
    x = 17,635,371,777.85/145,283.44
  6. Step 6: Final answer
    x = 121,385.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.