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Finding the Fourth Proportional to 102,004.58, 140,726.02 and 58,976.20

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Solution

The fourth proportional to 102,004.58, 140,726.02 and 58,976.20 is: 81,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,004.58 : 140,726.02 = 58,976.20 : x
  2. Step 2: Convert to fraction form
    102,004.58/140,726.02 = 58,976.20/x
  3. Step 3: Cross multiply
    102,004.58x = 140,726.02 × 58,976.20
  4. Step 4: Simplify right side
    102,004.58x = 8,299,485,900.72
  5. Step 5: Solve for x
    x = 8,299,485,900.72/102,004.58
  6. Step 6: Final answer
    x = 81,363.86

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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.