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Finding the Fourth Proportional to 146,031.58, 201,523.80 and 78,963.58

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Solution

The fourth proportional to 146,031.58, 201,523.80 and 78,963.58 is: 108,969.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,031.58 : 201,523.80 = 78,963.58 : x
  2. Step 2: Convert to fraction form
    146,031.58/201,523.80 = 78,963.58/x
  3. Step 3: Cross multiply
    146,031.58x = 201,523.80 × 78,963.58
  4. Step 4: Simplify right side
    146,031.58x = 15,913,040,703.20
  5. Step 5: Solve for x
    x = 15,913,040,703.20/146,031.58
  6. Step 6: Final answer
    x = 108,969.86

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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.