Home / 98,018.20-147,027.30-89,723.80

Finding the Fourth Proportional to 98,018.20, 147,027.30 and 89,723.80

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Solution

The fourth proportional to 98,018.20, 147,027.30 and 89,723.80 is: 134,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,018.20 : 147,027.30 = 89,723.80 : x
  2. Step 2: Convert to fraction form
    98,018.20/147,027.30 = 89,723.80/x
  3. Step 3: Cross multiply
    98,018.20x = 147,027.30 × 89,723.80
  4. Step 4: Simplify right side
    98,018.20x = 13,191,848,059.74
  5. Step 5: Solve for x
    x = 13,191,848,059.74/98,018.20
  6. Step 6: Final answer
    x = 134,585.70

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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.