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Finding the Fourth Proportional to 109,155.60, 163,684.80 and 50,009.40

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Solution

The fourth proportional to 109,155.60, 163,684.80 and 50,009.40 is: 74,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,155.60 : 163,684.80 = 50,009.40 : x
  2. Step 2: Convert to fraction form
    109,155.60/163,684.80 = 50,009.40/x
  3. Step 3: Cross multiply
    109,155.60x = 163,684.80 × 50,009.40
  4. Step 4: Simplify right side
    109,155.60x = 8,185,778,637.12
  5. Step 5: Solve for x
    x = 8,185,778,637.12/109,155.60
  6. Step 6: Final answer
    x = 74,991.83

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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.