Home / 109,009.20-163,618.20-56,456.40

Finding the Fourth Proportional to 109,009.20, 163,618.20 and 56,456.40

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Solution

The fourth proportional to 109,009.20, 163,618.20 and 56,456.40 is: 84,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,009.20 : 163,618.20 = 56,456.40 : x
  2. Step 2: Convert to fraction form
    109,009.20/163,618.20 = 56,456.40/x
  3. Step 3: Cross multiply
    109,009.20x = 163,618.20 × 56,456.40
  4. Step 4: Simplify right side
    109,009.20x = 9,237,294,546.48
  5. Step 5: Solve for x
    x = 9,237,294,546.48/109,009.20
  6. Step 6: Final answer
    x = 84,738.67

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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.