Home / 109,026.20-163,539.30-89,999.30

Finding the Fourth Proportional to 109,026.20, 163,539.30 and 89,999.30

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Solution

The fourth proportional to 109,026.20, 163,539.30 and 89,999.30 is: 134,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,026.20 : 163,539.30 = 89,999.30 : x
  2. Step 2: Convert to fraction form
    109,026.20/163,539.30 = 89,999.30/x
  3. Step 3: Cross multiply
    109,026.20x = 163,539.30 × 89,999.30
  4. Step 4: Simplify right side
    109,026.20x = 14,718,422,522.49
  5. Step 5: Solve for x
    x = 14,718,422,522.49/109,026.20
  6. Step 6: Final answer
    x = 134,998.95

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1.5x scale

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.