Home / 109,039.20-163,607.40-49,844.40

Finding the Fourth Proportional to 109,039.20, 163,607.40 and 49,844.40

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Solution

The fourth proportional to 109,039.20, 163,607.40 and 49,844.40 is: 74,788.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,039.20 : 163,607.40 = 49,844.40 : x
  2. Step 2: Convert to fraction form
    109,039.20/163,607.40 = 49,844.40/x
  3. Step 3: Cross multiply
    109,039.20x = 163,607.40 × 49,844.40
  4. Step 4: Simplify right side
    109,039.20x = 8,154,912,688.56
  5. Step 5: Solve for x
    x = 8,154,912,688.56/109,039.20
  6. Step 6: Final answer
    x = 74,788.82

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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.